.kkrieger/Walkthrough

As you begin the game you'll be thrown immediately into the action. Clear out any four legged walker enemies that are close by, then turn around and collect all the ammo. Head back the way you came and clear the room of enemies. Grab the health power-up if necessary, then walk near the large door. It will rise up and several more bots will come out.

Machine gun
When safe, grab the second gun. Remember to conserve ammo as you can spam this one easily. Continue forward and up the stairs until you reach the next door.

Energy gun
Grab the third gun, it's like the first gun you begin with but twice as powerful. Collect as much ammo as you can, then wait for it to respawn. Collect 999 before continuing onwards.

Spider beast
A new enemy will be present in the next room: a large, spider-like monster that can shoot at you. Spam it with the machine gun, and clear out the walkers with your new, powerful rifle.

Final room
You'll finally enter the room that was in the introduction video with the pillar. Head up one of the ramps and hop onto the center platform to finish the game after the platform descends to the floor.