Six levels of arcade action evloves you from a lowly amoeba all the way up the food chain to human.
As an amoeba you must eat the DNA while avoiding the other bacteria. Jump to catch elusive water flies as a tadpole. The rodent must burrow to avoid snakes and find the cheese. Build a dam during the exciting beaver phase. Protect your oranges from thieving monkeys as a gorilla. Finally as a human you must destroy the revolting mutants with your laser.