I may not be world's biggest fan of runner games, but Jones On Fire is one even I couldn't ignore. The premise is simple: you're a rectangular prism-shaped fireman, saving rectangular prism-shaped cats, in a very rectangular world, from some very rectangular fire and various other rectangular obstacles.
I'm not even sure what else to say. Watch the trailer. Yeah. That's a thing you should do - because it's kind of mesmerizing.
Jones On Fire is $1.99 in the Play Store - and there are no in-app purchases. There are in-app cats, though.