PC (Microsoft Windows)9 грудня 2001 р.
Випущено ✓ 
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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
Режими гри
Single player