Rollercoaster gang rise up!
Funnily enough, my first idea was also something about not going too fast on a rollercoaster. I wanted my passengers to fall out, but the player able to catch them again. But I couldn't get the physics to work right, so I just gave the player a shotgun to shoot the rollercoaster 🔫. I guess your take has a similar issue, the physics just feel so janky that it is hard to judge why/when you fail. But it was still fun! Proof that this idea has potential.
It's curious how so few submissions went for a rollercoaster theme, I thought it was obvious. 🤷