I wish there were more levels or perhaps some loops that bring me closer to the top of the turtle (maybe there are some like that, but I haven't reached them?). The setting is fun, and the gameplay is fun to match it!
The only thing that felt a bit tacked on was tracing the loop - it's not particularly hard, but not fun either.
Still, it really looks like something I'd play on an arcade machine. Well done! :)