This game is somewhat similar to Lemmings. There are little guys who never stop walking. When they hit a wall the turn around. When there's danger ahead, they just go there and die. They don't think, only walk. You need to think for them. Unlike Lemmings, here you don't distribute tasks between the creatures, but draw lines with your mouse. The guys will walk on these lines. Your goal is to take the required number of guys to the exit. If more guys reach the exit alive, you'll earn more money.