This game is free and open-source. Everyone can use it's sources. Feel free to fork me on github: http://bit.ly/coregame.
Added text stroke for better readability.
Diffuculty now increases as time passes.
Added Greek and German translations (thanks to Fivos Asimakop).
The game now uses accelerometer, not orientation sensor (suggested by Fivos Asimakop), removed wake lock.
Few other optimisations.
Content rating: Everyone
Author: Andrey Moiseev
Market link: ru.o2genum.coregame
Web site: http://o2genum.blogspot.com
Market downloads: 500-1,000
Market rating: 4.2 / 5.0