PC (Microsoft Windows)December 9, 2001
Released ✓ 
RELEASES · DEALS · SUBSCRIPTIONS
Critical Mass
Critical Mass (aka Critter) is a shoot'em up (smup) similar to Galaxian. The basic idea is simple: you move your ship back and forth at the bottom of the screen, shooting up, while bad guys fly around and shoot at you.
Arcade
Game modes
Single player