Tutorial based 2D roguelike game "Big Water" for iOS and Android.

"Big Water" is an endless survival game with variable difficulty. Main charecter is an alien blob, that can't live without water.

Links to download:
iOS: https://itunes.apple.com/us/app/big-water/id962349722?mt=8
Android: https://play.google.com/store/apps/details?id=com.OlegShunaev.BigWater

I am new to game developing and I strongly appreciate any comments that will help to fix my mistakes!