Feedback:
1. Gameplay:
I like the concept of the game. I also like that its 3D. Sometimes the colliders are off. The boost is way to slow, add more velocity to make the game less boring.
2. Theme
You pretty much nailed the theme. Nothing to say here. Perfect
3. Aesthetics
I like that you went with 3D. I would suggest you to make the models more high poly because the edges look way to sharp. I know that low poly has its own look but here its a little bit exagerrated. Make the map stones bigger and maybe add a ground and environment.
4. Sound
The background is music fits the environment. Maybe add UI Sounds. The Jetpack overheat sound is awful. Please make it softer or just an alarm.
Overall, 5.34/10
Which is great for a beginner. Keep it up!
Please take this feedback with your brain and not your heart.