FallOver!
Playing FallOver! for the first time might seem as if the game is broken. However, it's actually not. The game is basically your typical Mario-esque platformer with a little twist; it has weird game physics.
Instead of the typical run, jump, walk affair, your little character has trouble keeping his two feet firmly planted on the ground. He has to walk with tons of coins in his pocket when he collects them so he constantly topples and "falls over."
This little twist is definitely enough to set apart the game from all other typical platformers. It's a bit short but otherwise pretty fun to play. Give it a go.