Interesting prototype, there are still some low hanging fruit that you could implement to improve the quality of life such as displaying the score, not having a big unused black space around the game, or adding a margin to the planets (making their colliders bigger than their visuals). A bit more complex but not that much would be to show your future potential trajectory while you spin (i.e. a simple line that goes in the direction you're pointing toward)  so you can better time your jumps between planets. That would allow you to increase the overall speed of the game while keeping it playable, because it is currently quite slow. And for the last suggestion, but way more complex to do, it would be to give an area of gravitational effect to each planet, that would curve the player's trajectory, it would allow the player to try some pretty cool trickshots

very fun! 
my only feedback is that it should show your score, and maybe make the planets spin faster

i liked the idea, and it's funny

Cool idea! Sounds and visuals are very pleasing, but game is a bit hard.. maybe if there was planet variety or smth like this? I see the potential

Nice visuals and sounds, but the gameplay is a little lackluster and repetitive