Hey, I tested your Rabbit Rocket Race as you said. Here's my honest feedback:
1. Language: English only. It would be nice to have other languages in the future.
2. Flying issue: I couldn't figure out how to keep flying. Maybe the controls aren't clear?
It's a rocket but I couldn't stay in the air.
3. Some small things could be optimized, but overall it's not bad. Hope this helps. Good luck with your game.
Also, since you said you'd test mine if I test yours
Thanks!