This is simply awesome work!
Well, I'm 42 and I remember MM series a lot from my youth, but this is better. Playability of LooseBolts is something I haven't tasted for a very long time. The physics is a perfect balance of pure fun and difficulty. Simple to learn, but a great deal to master. And it has a splitscreen too!
And I adore the atmosphere of the game. Cute cars with apparently lots of love put to the creation of the game is a very rare mix these days. Even less so in the native Linux world.
This is pure joy that radiates positivity all around it, thank you very much for all the effort that went into this gem!