Boom is some kind of Doom clone in which you move through different levels in a first-person view, shoot enemies and look for the exit. In contrast to Doom there is now continuous movement/scrolling. Instead, you move in steps, similar to roleplaying games like Dungeon Master or Eye of the Beholder. Furthermore, your weapon is not aimed at the middle of the screen. Instead, you seperately move a cross-hair across the screen. The cross-hair also buckles when shooting, dependeing on the type of weapon used.
Platforms: Commodore 64