Berzerk

You have been sent into a building infested with robots, and must do your best to clear it out. Each room has a number of walls through the middle, which restricts your movement. There will be a number of bad guys in the room - on early screens they may be immobile and not shoot at you, but after a few levels, they become capable of shooting in multiple directions. You can shoot at them in 8 directions, but can't shoot diagonally while moving. There are gaps at the side of each room, through which you exit, before or after clearing the room (there is a bonus for clearance). You get an extra life every 2000 points.

The gameplay is fast-paced and challenging, requiring precision shooting and strategic movement to clear each level. The robots will try to kill you, so you must stay alert and react quickly to avoid taking damage. As you progress through the levels, the difficulty increases, with more complex room layouts and multiple enemy types adding to the challenge.