Scene 1[edit]
The anomaly teleports you inside water. Quickly swim up to avoid being pulled down by the tentacles. When you reach the surface, head to the right, and kick the slugs on the ground (or jump past them if desired.) Watch for the slugs that drop from the ceiling as well.
A few screens to the right brings you to a large animal that chases you. Run all the way to the left, and grab the vine. You'll swing around, and need to run to the right until the aliens save you, before they capture you.
Scene 2[edit]
You wake up in a suspended cage. Swing it left and right, to crash it on the nearby ground, killing the guard, and grab his laser pistol.
Run all the way to the right until you reach the door. Hold 
to charge a shield and place it to protect yourself. You will be attacked shortly; wait for the enemy's shield to expire before detonating it.
Once the door opens, run to the right. Wait for the companion to get on the elevator, and head all the way to the bottom. Run left and as soon as you change screens, shoot the guard, then shoot power switch on left wall (flashing lights) Move one floor up, and head to the left. Blast the door open with a charged shot; this alerts the guard below, who has to break through three doors to catch up with you.
Head all the way to the left until you reach the dead end. Your companion will lift a floor hatch, which you can take.
Scene 3[edit]
On some versions, you need to avoid the steam jets from the ceiling.
Roll all the way to the left, and the head to the right. Once you fall down three levels, roll to the left to drop down.
Head into the recharge station to the left, and use your recharged pistol to blast open the three doors. Exit to the right, kill the guard, and do a long-jump down onto the ledge below. Blast a hole in the wall to continue.
Scene 4[edit]
Jump down all the way to the bottom of the cave. Run to the right, jumping over the stalagmites, and run to the right (avoiding falling rocks).
As you continue right, you will need to avoid ceiling tentacles, and floor traps; if necessary, you can shoot the tentacles to cause them to retract. Continue right until you reach a dead end, which you blast open; this is needed to flood a chamber later.
Return left and up. As you approach the flying creature, shoot once to wake it; it will eventually fly into the tentacles to the left. Jump across the stalactites to the left. Blast the rock on the left side to create a ramp back up (which will not kill you even when standing underneath it.)
Climb up the first ramp, and head all the way to the right, jumping over holes. Blast the wall, and run all the way left before the water hits you; you should be forced up. From here, run right until you reach a wall; destroy it and continue right until you reach a new building.
Scene 5[edit]
Proceed right until you see a glass ball suspended in the air. You should see a guard reflection on the ball; when it's under it, shoot the ball to cause it to hit the guard.
Head left, and re-enter the building on a lower floor. Shoot the chandlier to knock it down, run down the stairs then shoot the guard. Head to the right all the way; you'll be grabbed by a guard. Kick him, run back and get you pistol then shoot him.
One screen to the right is an ambush from both sides. Defend yourself by setting up a shield before hand.
When you reach the water-filled area, dive in, and head to the left. Take the second upward path to get some fresh air before diving all the way down. When you get out, jump over the floor traps, then shoot the power connection. Exit the flooded area and head right, before jumping down.
Blast the right exit in the room, and run all the way to the end. Defend yourself by setting up shields, and wait for your companion to pull you up.
Scene 6[edit]
You're pulled outside. Take a left to walk around the building. Enter from behind the guards, and charge the shield; shoot your pistol just inside it to take out the guard. Wait for your companion to finish off the other enemy and stand at the edge. When he arrives, he'll throw you across the gap. Jump down and catch the canopy on the left. Setup a shield and kill the guards which then attack.
First, run to the left, until you reach a few guards trying to escape. When you catch the last one, brandish your pistol and he'll raise his hands; leave, and he'll close and lock the door behind you. Killing him is dangerous, as it allows enemies outside to fire at you.
Run up the stairs, place a shield, and blow open the door. The guard will try rolling grenades; make sure he launches at least four before killing him. Head down, and prepare a few shields while the armored guard blasts open your nearby door. Defeat him, transport down the lift, and kill the power connection. Head back up and down the stairs to jump into an underground path.
Run past the grate. On the next screen, jump over the hole, and pull the switch down. Jump down the hole and run all the way to the right. Go up the left at the end. Run to the left to open the door and extend the bridge your companion will use. Return to the right, and head up. The juggernaut is to your right.
Scene 7[edit]
This is the juggernaut, and you will be deployed in an arena. You need to escape before your vehicle is destroyed.
Enemies will first try rolling grenades at you. You can stop them by pressing the green button on the far right to launch missiles, which then clear out the ground around you. This gives you some extra time, but not much since you cannot prevent the guards from using charged shots against you.
To escape, press the first two visible buttons to light up the control panel. Press the lower-left button to enable more buttons, and the four upper left buttons to turn them green and red. Press the blinking white button to eject and escape.
Scene 8[edit]
As soon as you land, exit to the right. Deploy a shield, then take out the guard attacking before continuing. You'll fall because a shot takes out the floor under you.
You'll be caught mid-fall, but by a hostile that slams you against a wall and kicks you, but your companion will come to help; but you are critically injured and do not have your laser pistol.
Crawl all the way to the right to the switches. Eventually, the bad guy will win the fight and tart to approach you; pull the first switch when he's under the center area, and pull the switch again to activate the lift. Crawl back to the lift to complete the game.