This app was mentioned in 2 comments, with an average of 1.50 upvotes
Stress Baal. There's a little demon trapped in your phone and you throw him around with your finger. Just for fun, there's no goal or objective at all.
Don't think this is a platformer but https://play.google.com/store/apps/details?id=air.com.doubleflawless.StressBaal&hl=en ?