Greens Survive Only When Reds Die is a puzzle platformer in which you control multiple characters simultaneously. Characters have either a green or red visor. Your goal is to guide the green characters to the exit, but first, you must unlock the exit by killing the red characters with spikes or enemies. Don't let the green characters touch spikes, enemies or red characters. Every level contains a floating circle, diamond and square, which can be collected by a green or red character. You'll get a star for the level if you collect all of these items.