Shopkeeper Cat is the best skin, and I'll never play as anything else.
A downloadable game
This is an endless platformer where you play as a cat trying to, uh, get coins? Anyway, there are multiple characters and I think the game is pretty fun. Also, I know the characters are expensive, but it makes the game last longer in the end.
Instructions: Press J to jump and arrow keys to move.
Extract the .zip's contents and run the .exe inside.
DO NOT MOVE THE .EXE FILE!!