This is definitely a fun game, the mechanic is really fun, both the boosting and the chomping. The only complaints I would have is that when you level up you stop moving, it kind of ruins the flow of the game, but other then that it is a fantastic and fun game :D
P.S: I'm not sure what you made and what you got off the internet? I know the model isn't yours, but I'm not sure about the other things, you should probably disclose that in the comments or something.