Haha nice reminded me of Temple Run back then. It had a similar feel to it. The mood and atmosphere of the game is really nice! Also I was so happy once I was a bat for the first time. It seemed like coming down from being a bat was a bit hard sometimes, so maybe having a few secons of invincibility after coming down would be a bit more fair to the player.
Really polished, fun game And even with a highscore which definetely adds to the fun :)