So I spent some time with this. It's a good endless runner with lots of fun power-ups. You jump by tapping the left side of the screen, keep holding and you do a double jump (similar to crazy Bill), tap the right side of the screen to shoot.
You earn coins while playing only by jumping on rats, I've not managed to get more then 20 coins in a run. But you get coins by completing missions so for now I don't think the upgrades are too expensive
Now the bad thing: the collision detection is HORRIBLE!! You ran into a rat, lose a life but then you should be invisible for at least a second. Losing two lifes within one second is so frustrating.