I love the idea and had fun playing the game! WIth a bit more polish and levels, and probably even a mobile version, I would probably play that a lot :D Gravity games are just so ... satisfying for me xD

Seeing the trail and your crashed ships also added a nice touch to the overall feeling. I could also imagine something like a super meat boy replay, where after you complete the level, you see all your failed attempts and only one makes it. 

Really great concept, good work!

I like this mechanic, and you've programmed the physics really well, though you might seriously want to stick an epilepsy warning in the description for the end of the final level.