Space Race first playtest

Here's my attempt at a speed run game, no art yet, just gathering feedback on the gameplay. I do need to work on the level design later...

I'd like to hear your feedback on:

1) values like player's speed, angular drag, etc.

2) mechanics (there are only 2 really: trampoline and a black hole), should I add more or simplicity like this is good?

3) anything else you'd wanna see (maybe online scoreboard or something?)

Anyway, thanks to anyone who will play the game, I'm very thankful for your feedback!