Hi,

The game is free and the only permission needed is the network access (for ads but you don't have to click on them and there are no ads during gameplay).

I used two textures from OGA :

http://opengameart.org/content/seamless-rainbow-colors

http://opengameart.org/content/free-tiling-textures-pack-45-0

I made this game to teach myself how to use Unity, though I only have one android device to test it so I don't know if there are any bugs (such as interface clipping for example), so it would be very cool if someone could try it and contact me (there's my mail on the google play page) if there's anything wrong :)

Here's the link : https://play.google.com/store/apps/details?id=com.Erebnyx.KatchM