You can raise sperms to the top stage just with Up, Down, Right or Left swipe.
Swipe to fly the sperms
If the sperms in the same shape meet, they evolve themselves one step naturally.
NEVER give up
Just concentrate on raising the sperms to the top stage.
★ Simple but strong attractiveness like that of 2048
★ Delicate and intuitive graphic
★ A minimal brain play to which anyone can easily approach!
★ Compete with other users, raise sperms to challenge for the top ranking.
★ Supports Google Achievements, Leaderboards and Cloud Server.