Rabbit in the egg's shell
Usatama-San is the rabbit in the egg shells.
Usatama-San, the balance is very unstable because they contain egg shells.
Lets support the Usatama-Sans balance.
Tilt the iPhone left and right, and you will keep balance of Usatama-San.
Simple Endless Game.
Usatama-San may become friends with and give support to a long time.