Rainbow Space Donkey Escape 

Rainbow Space Donkey Escape is a small game made for Christmas. You play as a rainbow space donkey, separated from your herd. Unfortunately you're in a part of space that's full of murderous evil Santas, who would like nothing more than to punch you in the nose. The aim is to make your way back to your herd without dying.

Complete with newtonian physics, a Binding of Isaac-style item system, and secret things.