Serious Sam: Siberian Mayhem is a standalone adventure of Serious Sam in Russia. After the events of the fourth part, the hero goes to Siberia to catch up with the escaped traitor general Brand. The game consists of 5 story levels.
Eternity smells of oil
The game starts off in a standard way: with an introductory video. Once it’s over, you’ll get a gun and a knife. Kill the first demon ahead and turn to the pipe on the right. There’s some trash near it, and you can find the first secret among it. This is an ammo stash (secret #1 of 16 on the level). You can jump onto the pipe itself from the trash heap. After crossing it to the other side, you’ll find a doll. After picking it up, you’ll hear thunder and a rainbow will appear in the sky. Apparently, this is a reference to Death Stranding.
We follow the coast and eliminate opponents. After a while, we pick up a new weapon, a pump-action shotgun. It is well suited for eliminating nimble demons that are trying to get closer to you. Closer to the end of the beach, we will see a slope on the right, which is indicated by a plot mark. Do not rush to climb up there! We eliminate opponents and continue moving forward along the coast until we find an empty cargo container. However, there is a small object inside it. We pick it up, thereby activating a secret trap (secret No. 2 of 16 on the level).
Eliminate the two enemies that appear. Use the E button to attack the enemy at close range. An alternative option is to attack with a knife (select “1”). Follow the path to the designated point and climb up the cliff. Head along the edge of the mountain on the right side and see wooden structures in front of you. Apparently, there was a small bridge here. Go to the very end of the structures and find secret armor (secret #3 of 16 on the level).
Then we go back along the structures and look to the right. We see a wooden house. Before reaching the house, between the trees on the right side on the ground we look for a hole that is boarded up with boards. We break these boards and jump down. We emerge from the water and find a secret rocket launcher (secret #4 of 16 on the level).
Continue to the designated point, eliminating enemies along the way. You can use a pistol to save money. After that, go to the oil rig and climb up. Enter the wheelhouse and watch the cutscene. A new story marker will appear. Leave the oil rig and follow the path that leads between the mountains, to the right of the story marker (do not approach it). This is the road that will lead to a lonely building. Having reached a dead end, kill the opponents. Follow the building and find secret explosives, which are lying on a container in front of the building (secret #5 of 16 on the level).
Once we pick up the item, we go back to the oil rig. The path that leads along the rig goes a little to the right. There we can find a note and the starting point of a side mission called “Black Gold”. To complete it, we go in the direction of the blue mark and eliminate all opponents. We enter the room at the top of the second oil rig and take a skill point (a purple ball) from the container. Now let’s deal with secrets. After leaving the oil rig, we follow the right side, to the abyss, at the bottom of which is the beach. Do not jump down. Instead, we find another dilapidated structure.
We go to the very end and stand with our back to the secret armor. We prepare the weapon and take a few steps back to take the secret armor (secret #6 of 16 on the level). A bull will immediately appear and run towards us. We shoot him in the head. You can also use the rocket launcher found earlier. We go back along the bridge and follow to the left. Ahead we see a dried-up tree, under which we find a bandage. We pick it up to activate the secret trap (secret #7 of 16 on the level). As a result, 2 large battlemechs will appear, using rocket launchers. You can shoot down the flying rockets. The main thing is not to get close to the enemies, otherwise it will be difficult to dodge their shots.
In principle, it is not necessary to destroy the biomechs. You can run away from them. We move along the mountains on the left, continue walking past the minefield and soon we will find a house behind which lie secret missiles (secret #8 of 16 on the level). By the way, they can be used to destroy large biomechs. We follow the yellow mark and go up the stairs.
We take the underbarrel grenade launcher from the suitcase. Now, to use it together with the shotgun, just press the right mouse button. As soon as we get to the enemy territory, we kill everyone. You can use the found grenade launcher or pistol. It is easier to hit the heads of enemies in orange suits with a pistol. Having won, we head to the right side, kill new opponents. Some of them will jump out of the ventilation located on the right side. Now it is open, and we can look there. We go to the end, climb the slope on the right and kill opponents. Do not rush. We turn to the right side to go to the metal bridge. From it we jump into the ventilation to activate the secret portal loop (secret No. 9 of 16 on the level). At the end of it we get a gadget called KAIF.
To use any gadget, press the Z key. Continue moving towards the marker. As soon as we meet a large green enemy, eliminate him with an underbarrel grenade launcher. Inspect the locked gates on the right side. There is a wooden container next to them, containing a purple ball (skill point). Go into the small hall on the left. Move along it carefully, trying not to get into the streams of gas and fire.
Jump away from the enemies who are trying to hit you with a hammer, and then shoot them in the back. You can also shoot at the red cylinders on the sides. And don’t forget to use the underbarrel grenade launcher. Once you kill all the enemies, go out into the open, where you’ll meet two more green monsters. Eliminate them and go up to where the first one stood. At the beginning of the location, on the right. Go along the metal platforms inside the building and find KAIF in the far right corner (secret #10 of 16 on the level). Continue walking along the given mark and kill the first skeleton. Go to the control room where the marker points and press the red button.
We leave here and go forward to the location with many columns. Now there will be a rather difficult battle. After we destroy the first group of opponents, skeletons will appear. At the first stage, until the skeletons appear, we kill the enemies with any weapon, but do not shoot at the cylinders. When the skeletons appear, use these cylinders to blow up several of them at once. Do not stop moving, constantly roll in different directions so that the skeletons jump past Sam. Do not forget about the gadgets (we heal with the help of KAIF), which are activated by the Z key. Having won, we enter the elevator and go down on it. We go out on the rails and eliminate the opponents.
If desired, they can be eliminated with a rocket launcher. We go behind the carriages on the right side and in the corner, behind the concrete slabs we find secret rockets (secret #11 of 16 on the level). We go to the other end of the railway and press ourselves against the right wall. We go around the stone slab near the train and find a secret cache (secret #12 of 16 on the level). We head through the smoke-filled rooms, killing enemies. It is best to use an underbarrel grenade launcher. We go up the elevator at the top and go outside. We go through the next door and pick up a new weapon – an AK-47 assault rifle and cartridges for it. It is best to run to the grate at the beginning of the location and shoot back at the enemies from there. Try to shoot down the flying drones that carry kamikazes as early as possible.
Having won, we follow the marker, but do not rush to move up the stairs. Instead, we go under the metal structure to find a hole in the wall in the far corner. It leads to a hidden room, at the end of which you can find secret explosives (secret #13 of 16 on the level). We rise a little higher and go through the yellow gate. If they do not open, and music is heard, then there is a living enemy left. We go back and inspect the territory. Usually flying drones get stuck, but I had a moment when a kamikaze was behind the bars.
We go back and eliminate the enemies. In the new location, do not rush headlong. Instead, hide behind the truck and eliminate the opponents who will approach Sam themselves. Then pay attention to the upper bridge in the middle of the location. Shoot at the enemies or the cylinders located there to eliminate the snipers as quickly as possible. After eliminating all the enemies, go around the building with the note inside and see the barrier blocks. Behind one of them we find a secret explosive (secret #14 of 16 on the level). Make sure you have at least one explosive left!
We enter the room and read the note. We go to a large hall with platforms for jumping, go down and search two cases. One of them contains a purple ball (skill point), and the other contains grenades that create a slowing field. We eliminate opponents. There will be many of them, and they will stop appearing as soon as the scale at the top of the screen disappears. It decreases as you kill enemies. Having won, we go outside and jump onto the container located on the left side of the door. From it, we jump onto the concrete slab above the doorway and pick up the secret armor (secret # 15 of 16 on the level). Now we follow to the right side and on the left hand side we see several wooden boxes. We break them with any weapon to reveal a secret wall. Such walls can and should be destroyed using explosives. We throw dynamite on the wall (select it with the “1” button, like a pistol). As soon as the explosion occurs, we go inside and find a teleport that leads to a secret classic level (secret #16 of 16 on the level). Eliminate the opponents and get a “heart” as a reward, which will give +100 HP. Leave the room and follow the nearest marker to complete the first level.
Song of the Petrel
As soon as the new chapter begins, we go through the opened gate and follow to the right. In the corner there is a blue gas pipeline with a red wheel. We jump up it and look for a secret gadget (secret #1 of 11 on the level). We jump down, and then even lower, into the tunnels with the railway. There are wagons here. We go to the adjacent tracks and find secret armor in the container wagon (secret #2 of 11 on the level). We follow back and look for a ladder. We climb up it and press the button to raise the bridge.
We go to the opposite side and look into the passage located on the right side. This path leads to an additional mission called “Light It Up”. We go forward and turn left. We eliminate the first enemies and go to the very end of the site. Between the white barrels we can find secret explosives (secret #3 of 11 on the level). We come close to the door to hangar #5, which will be locked. It is necessary to turn on the power supply. Now we go through room #4 and eliminate opponents. We turn left and kill new enemies who run out of warehouse #2. We go inside and jump over the barrels on the right side. Behind the tool rack we can find secret explosives (secret #4 of 11 on the level).
We continue in the direction of the marker on the map, which points to an additional mission. At the first opportunity, we turn left and climb up the hill. A little to the left we can find a house, near which there is a snowman with a bandage. We shoot at it to activate a secret trap (secret #5 of 11 on the level). If we pick up the bandage ourselves, we will receive damage. Then we head to the blue pointer. We jump down and climb the yellow stairs. We press the red button to supply power.
Jump down and eliminate all enemies that appear. A little later, a huge biomech with its own health bar will appear. It is best to shoot at it with a machine gun or a rocket launcher. Keep in mind that the enemy will constantly move between three positions in a random order. As soon as we destroy all enemies, the path to the elevator will open. Go forward and use the elevator to go up. Get on a small truck and go back. At the corner of the complex, turn right. A little to the right of the exploded snowman, you can find a hole with a bunker. Open the bunker door to get into the shelter. This can only be done after the power is turned on. At the very end of this shelter, we will find a container with a purple ball inside (secret #6 of 11 on the level). As always, we get an ability point.
When returning back, act carefully, because three bulls will appear in the shelter. Head back and follow the additional mission sign. On the way, eliminate a large biomech. Enter warehouse #5 and go up the stairs. Jump down and eliminate a huge enemy. You can use the rocket launcher that you found on the first level. Then go to the next room, which was guarded by an enemy, to get a new device called “rage serum”. Gadgets are activated using the Z key, and to switch between them, use the M and N buttons.
In the lower right corner of the screen, all available gadgets and their number are shown. One of them will always be highlighted. This is the gadget that will be activated if you press the Z key. If you acted like us, then by now you have managed to acquire grenades that distort time and space, the KAIFF healing device and the rage serum. We go back and press the red button at the point where we started the mission. We can find a note on a container nearby. We go across the bridge and use the crane. We remove 2 cargo containers from the road and drop another container that prevents the third bridge from being raised.
To control the crane boom, use the CTRL and SPACE buttons. They allow you to raise and lower the magnet. To activate the magnet, press the left mouse button, and to drop an object attached to the magnet, press the right mouse button. You can throw boxes into the tunnels with rails. As soon as you do this, go forward along the road without turning anywhere, and where the cargo containers were, press the button on the right side. Cross the bridge and enter the elevator located on the right side. Watch the cut-scene and eliminate the new enemy. You should move around him in a circle, and in this case he will not be able to hit you. We clear the area, and after the battle, turn around and go from the hole in the wall (where the marker points) to the far right corner. There is a concrete slab there, behind which you can find secret armor (secret # 7 of 11 on the level). We enter the building and watch the cut-scene. When we fall into the water, we swim straight and climb onto the concrete ledge with the enemy. We eliminate the opponents and climb onto the bridge located behind. We press the red button. From here you can also shoot the helicopter.
By pressing the remote control, we switched the rotation speed of the propellers. We go back and jump into the hole that appeared. We swim past the slowed down propeller and climb up the ladder. Then we eliminate the helicopter (if we haven’t done it before), and go through the gate. We eliminate all the opponents and, without turning anywhere, follow the marker. You don’t need to go through the gate, where you can see tall blue buildings with the numbers “1” and “2” on them.
In front of the gate, look to the right and see several containers. We pass between them, bend down and crawl further to get to a hidden place with a secret drone (secret #8 of 11 on the level). As soon as we climb back out, we approach the cliff opposite the containers, and then jump down onto the wooden bridge. From there, we jump into the next hole to get to the teleporter. Once in the new place, we pick up the item and see the inscription “Pills have their price!” (secret #9 of 11 on the level). We eliminate the medbots and go through the teleporter that appears to go back.
Then we go to the waypoint and eliminate all enemies along the way. Having done this, we go through the building and pick up a purple ball (skill point), which is in the container. We go through the basement and read the note. We go down and destroy the opponents. Next, we examine the large hangar with the mech and get inside it. We move to the pointer, destroying all opponents. The mech has no durability, which means that you cannot be killed at this point. Using the right mouse button, we attack the enemies with the built-in chainsaw.
Once we are in the right place, we will have to leave the mech, which has run out of energy. This will happen automatically. We continue to move forward and on the right side of the white containers we find a secret item – explosives (secret No. 10 of 11 on the level). After that, we return to the position of the discharged mech. We go back a little more and look at the cargo containers located on the left side. On the doors we will find 2 points for installing dynamite. We throw it on the doors and blow them up. We go down and go to the secret classic area (secret No. 11 of 11 on the level). As soon as we find ourselves, at the fork we can turn left to get into a small room with letters. We jump on them and form the word MENTAL. Thanks to this, we will open a secret niche, inside which there is a heart. You need to do this as quickly as possible, since the ceiling with spikes comes down, and you can run into them while jumping. The heart gives +100 HP. After that, we go through the level, running under the rising blocks. The main thing here is not to rush. We go to the signpost to complete the task.
Siberiade
We search the box with the ability point and destroy the enemies in the location on the left. After that, we get on the snowmobile and go forward. Having reached the blue oil pumps on the right, we examine the nearest ones and turn them on. You need to turn on about three pumps (the rest are working), and then secret oil golems will appear (secret # 1 of 27 on the level). We go further towards the yellow marker and near the distant pumps we find a small mountain on the left. There is a passage on the side through which you can climb the mountain to find a secret gadget (secret # 2 of 27 on the level).
We go to the beginning of the location, go up from the oil pumps and turn right. We move along this road, without turning anywhere, until we find an enemy base in the far left corner. After killing everyone, we solve the puzzle with the pipes. You need to turn all the parts so as to supply green energy to each exit. Having done this, we get the first key . We go to the right and find a sign for a hunting estate. Follow forward to complete a side task. We pass by the house, where a cut-scene will play out. We go further, killing new opponents. On the hill on the left we see a purple thing. We pass by and find a place on the left through which you can climb the mountain. This is how we get to the secret gadget (secret # 3 of 27 on the level). We complete the task by taking the sled, killing enemies and returning to the house. There we get a hover scooter (a new gadget).
We leave the estate and go forward to the large base. On this complex, outside there are several square white barrels. Between some of them is hidden a secret gadget (secret #4 of 27 on the level). We also go inside the building, solve the puzzle with the pipes and take the second key.
We return to the estate (sign) and go right to the sawmill. On the left there will be a small snowy path that leads to a secret cellar (secret #5 of 27 on the level). Further along the road there will be the sawmill itself. We climb onto the roof to find a way along the pipe to a high silo. There will be a secret gadget on it (secret #6 of 27 on the level). Go further along the marker. On the right, on the slope, there will be a third enemy base, on which we find a puzzle with pipes and the third map. Opposite this base, among the trees, we look for a small metal structure, under which the secret gadget is hidden (secret #7 of 27 on the level). We go along the marker to the checkpoint, kill the enemies and enter the room on the left (across the street). There is a container with a secret skill point (secret #8 of 27 on the level). It can only be opened if you have three cards!
We clear the church area, help Olga and go inside. We get a new weapon – the Perun crossbow. We collect the bolts, go out to the church cemetery and behind the wall on the left we find a tombstone with an item. We interact with it so that a secret holy kamikaze appears (secret #9 of 27 on the level).
Let’s move forward. On the left, you can find a small clearing with a secret altar of Intertani (secret #10 of 27 on the level). This is a reference to a character from previous games in the series. On the other side of the road, there is an estate with a vegetable garden. In the far barn, where the tractor is, there is firewood, behind which the secret armor is hidden (secret #11 of 27 on the level). We continue moving forward and find a large field with one red object on the right. After picking it up, we activate a secret trap (secret #12 of 27 on the level). Opposite this field are the ruins of a church, where a large red scorpion appears. On the other side of the ruins, we find a secret armed snowman (secret #13 of 27 on the level). It must be destroyed.
We move forward and soon we will come across a bridge with an energy barrier. A secret gadget is hidden under the bridge (secret #14 of 27 on the level). We move to the right along the cable and power lines until we find a barn. After killing all the enemies, we go inside and press the buttons so that they all turn blue. There is a building behind the barn. Secret cannonballs are hidden behind it (secret #15 of 27 on the level). On the right, behind the trees under the rocks, there is a secret gadget (secret #16 of 27 on the level). You also need to go down under that same bridge (or directly into the ravine near this place) to find a pipe at the end of the pit. It leads to the bunker. There is a door at the end. In the room behind the wall on the left there is equipment. We find it behind it and press the button. This will take us to the secret classic level (secret #17 out of 27 on the level).
Soon we will come across the first demonic turret. We approach it. Periodically, a compartment with a core opens in the center of the turret, which we need to destroy. To make the battle easier, we can shoot off two guns on the sides of the turret. After destruction, be sure to pick up the first key. In the field on the right, where the demonic turret is located, there is a silo tower. We climb it and find a secret gadget (secret # 18 of 27 on the level). We move to the right along the road to find the second demonic turret. At the beginning of the field where the turret is located, behind the building on the right is a secret gadget (secret # 19 of 27 on the level). We destroy the demonic turret to pick up the second key. We go further along the marker. The gates open after the destruction of the first turret, but it is better to destroy the second one, since you will need all three keys.
We continue moving to the specified point. On the left side there is a tractor, which you can use to quickly travel around the location. On the left side there is a small base. The entrance will be closed. We go around it and jump over the fence, using a pile of snow. In the building located on the left side, we find a secret item (secret # 20 of 27 on the level). We go down the cliff and turn to the right. There is a river flowing here, and on the right side there is a waterfall. We follow through the waterfall to find a secret potion (secret # 21 of 27 on the level). After that, you will have to kill several huge monsters. Having defeated them, we continue moving along the river. We walk for a long time until we find a wooden bridge similar to those found on the first level (with two secret armors). We jump in the middle of the bridge and under it we find a cache of ammunition (secret # 22 of 27 on the level). We go further along the river, and next to a huge bridge we find a small boat house. Inside it there will be secret cannonballs (secret #23 of 27 on the level). There is a mill nearby. Go inside it and shoot at the ceiling of the upper floor to break the boards. A secret cannon will fall from above (secret #24 of 27 on the level).
We go under the bridge and find an entrance on the left inside. There will be a fire ahead. Interact with it to get the inscription “The fire is lit” (secret #25 of 27 on the level). You can go even further to get to the hall with a glass floor, where three knights from Dark Souls will appear. We go up and examine the train on the bridge. We go to the right of the car and jump inside from the suitcases. We pick up supplies so that a secret railway worker appears (secret #26 of 27 on the level). After that, we move to the end of the level and find a container with a purple ball on the right, which gives one secret ability point (secret #27 of 27 on the level). The container will open only if you have collected all 3 key cards that appear under the destroyed demonic towers. We can complete the level.
Roadside Picnic
At the beginning of this level, you need to go down and search the support under the bridge to get the first secret gadget (secret #1 of 16 on the level). We continue moving, go out into a spacious field and look for a passage in the rocks on the left, hidden behind the bushes. This path leads to a hut on chicken legs (secret #2 of 16 on the level). When fighting a monster, aim at the middle of the open door to hit right in the head. We kill the kamikaze army and other enemies, go up and down the slope to find a tank. On the roof above the tank we find a secret gadget (secret #3 of 16 on the level). We move on the tank across a huge field, destroying enemies and turrets. In the middle of the field, to the left of the turret there will be a platform with a container on which a “wrench” is depicted. We pick it up to restore the tank’s durability.
Once we destroy the distant turret, we can follow the marker through the opened passage. It is not necessary to finish off the remaining enemies. We find boards behind the building on the left, which we need to go around along the lake. We break them and search the cache with ammunition (secret #4 of 27 on the level). We go forward and turn onto the path on the left behind the lake to listen to the message on the flying drone. Having done this, we follow the blue pointer to complete the additional task “Alpha and Omega”. We enter the bunker, kill the huge red scorpion and turn right. We turn right again and destroy a squad of orange dudes. In the room on the right we find boxes. We break them and go down. We switch the levers so that they all turn green. After that, we get the secret automatic shotgun (secret #5 of 27 on the level).
We move further through the bunker until we see an open pipe. We need to jump into it. But first, we turn around and go forward and to the right. We call the elevator so that a secret squad of headless ones appears (secret #6 of 27 on the level). We roll down the pipe, approach the stairs and kill the “either frogs or dogs” that appear. When we go down on a huge platform and kill a bunch of opponents, we move along the corridor and destroy the skeletons. Then we see a fence on the right. We jump over it using the searchlight to find a secret gadget (secret #7 of 27 on the level).
We move on and enter the portal to meet Alpha and Omega. We use the rocket launcher with its built-in “multi-rocket launcher”. Hold down RMB to launch several rockets at the enemy at once. After the victory, we pick up the marked item and get out of here by elevator. We follow the marker to Kalinovka to meet Igor and other Russians. After the video, play the guitar on the right several times. Eventually, it should fly up. This way we will get (or rather see) the secret guitar of God (secret #8 of 27 on the level). In the neighboring yard we find a burner. After picking it up, we go behind the building on the right to find the secret armor (secret #9 of 27 on the level).
We move further to the indicated mark and use the new weapon to eliminate a large number of opponents. We pass through the gap in the wall and go up. We follow along the carriage on the right and behind the boxes we find a cache of ammunition (secret #10 of 16 on the level). Closer to the beginning of the train there is a container with a purple ball inside (skill point).
We go forward a little and eliminate the opponents. We turn into the courtyard located on the left side and see a building with a door in front of us, on which the inscription “Building 1” is depicted. On the left side there will be a destroyed staircase. We jump on its remaining parts and get to the roof. There we find a secret item (secret No. 11 of 16 on the level). We clear the area of opponents in the side courtyard and look at the grate located on the right side. There are boxes and a purple item behind it.
We go around the building, jump over the truck (between the cabin and the trailer) and look for a secret item behind the containers (secret #12 of 16 on the level). We eliminate the next opponents and move to the cars in the far left corner. We look for an explosive wall on the right side. Thanks to this, we will find a passage to the secret classic level (secret #13 of 16 on the level).
Eliminate all the skeletons that appear until a teleport appears that will take Sam back. Don’t rush. Instead of a marker, go around the same building in which you made a wall and move to the far corner to find a secret item behind the containers on the left (secret #14 of 16 on the level). Go through the marked hangar. Inside, find a grenade launcher and a boost – a cluster bomb. Leave the building and behind the containers on the left side, find secret armor (secret #15 of 16 on the level). Eliminate the opponents in the next depot and go outside. The longest battle awaits you here. As soon as you get a new target, move along the left wall and approach the far building. Go around it and inspect the ammunition cache (secret #16 of 16 on the level). Use the crane to remove the cargo containers standing on the rails. Continue killing enemies. At the end, the largest enemy group will appear. Kill the opponents, not forgetting to use gadgets! Having won, approach the marker pointing to the train.
Crime and Punishment
We move between the trains, eliminating the enemies that appear. As soon as we find ourselves at the station, first we go to the right side of the platform and behind the extension we find a cache with supplies (secret #1 of 15 on the level). We kill the enemies that appear and move to the other side of the platform, where the second cache with ammunition is located (secret #2 of 15 on the level). This time, large biomechs will appear, launching missiles. We enter the station building and pick up a new weapon – a minigun. We turn around and go to the toilet, located on the right side. In one of the booths we find hidden ammunition (secret #3 of 15 on the level).
We leave the station and engage in battle with a large squad of Mental. Then we return to the station and go to the right side of the entrance. We turn the corner and at the end we look for a container. From it we jump onto the visor and even higher to pick up a secret item in flight (secret #4 of 15 on the level).
Use the Scorcher and Minigun to get through the huge location. Eliminate the enemies. Go further down the street until you reach the multi-story buildings. Eliminate the enemies and head to the right side, to the far multi-story building. Open the door of the entrance and find a secret biomech on the relax (secret #5 of 15 on the level). Go further between the buildings and fight the enemies, moving along the long asphalt road.
On the left side there is a gas station called “Burevestnik”. We go around it and climb onto the extension. We do this with the help of a barrel and a yellow pipe. There we find a secret item (secret #6 of 15 on the level). After that, we go inside the park and move to the right side, to the gate, to find a cache of ammunition (secret #7 of 15 on the level).
We leave the park and follow the marked bridge. We move past it to the dead end where the road leads and pick up the item. Thanks to this action, we activate a secret trap with a kamikaze (secret #8 of 15 on the level). We return to the bridge, which will be destroyed. We destroy all opponents. We jump down and turn around to find a secret gadget behind the columns (secret #9 of 15 on the level).
We go to the end of the gorge, destroy the enemies and go up. Having destroyed the biomech, we follow the bridge on the right to look behind the far left building and find a secret item (secret #10 of 15 on the level). We follow in the opposite direction and eliminate enemies along the way. Having approached that same destroyed bridge, but from the other side, we go to the right and turn to the wall on the left. We come closer to find an item that activates a secret trap (secret #11 of 15 on the level).
We destroy all the enemies in this area and go out to the right. We follow the path forward and find a closed gate. We go the other way along the road and turn left. Instead of moving up the slope, we go down onto the ice. We continue moving forward and turn to the river on the right. We go down to the shore and see a purple thing on the right side. We pick up the secret item (secret #12 of 15 on the level). We head to the indicated mark and activate the generator inside the building. Having dealt with the ambush, we go back and go down to the opened gate.
There is a pipe to the right of them. Do not go through the gate, but climb up to the mountain where the pipe leads. Enter the secret gorge. Go down and go through the gate to stop the secret conspiracy (secret #13 of 15 on the level). The secret will be counted after eliminating all opponents. Follow the marker and eliminate the enemies. After picking up the gun, move to the right, to the end of the paved road, to find a secret item (secret #14 of 15 on the level). Then eliminate the opponents. There will be two waves.
When everything is finished, we can go through the gates into the city. We move forward between the buildings, turn right and clear the area near residential buildings. We turn into the garages on the left to find one open. Inside it, you need to destroy the boards to gain access to the teleporter leading to the secret classic level (secret #15 of 15 on the level). We go through the gates and fight the final boss. After the battle, watch the final video, hinting at a continuation of the series. Apparently, Sam will go to Egypt again. Perhaps this will be another stand-alone addition to the fourth part!