The Great Sperm Race is a funny game based on the human reproductive system. You play as a tiny sperm that must race to the egg! Race against 250.000.000 other sperm and fertilize the egg. There can only be one winner, be the first sperm and be born. Control the single sperm with the arrow keys. Be fast but keep distance from the sticky walls! This game is one of the funny racing games at Round Games. Enjoy and have fun in playing this free online funny puzzle game.