Choose 1 or 2

A correct answer is covered in either two buttons.
It is a simple game to compete for whether you can continue several times correct answers in succession.
Please challenge the limit.
It supports GameCenter which can compete with a world player.
Please challenge the limit.

A new feature of version 1.01
It supported sound effects.

A new feature of version 1.02
When you cannot be connected to GameCenter, you got possible to play in offline.

When a communication error with GameCenter occurred, please reboot the application.