Control a red ball and a green ball simultaneously. Test reaction speed.

* Simple fun game with fresh look
* Elegant and endless
* Easy to play, hard to master
* Game Center support
* It’s FREE!!!

How To Play:
Tap on the left part of the screen to move the red circle. Tap on the right part of the screen to move the green circle. Don’t let the shapes that have different colors crash.

Have fun!

What’s New

Version 1.0

This app has been updated by Apple to use the latest Apple signing certificate.

App Privacy

The developer, 齐 陈, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Game Center

    Challenge friends and check leaderboards and achievements.

  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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