You barely need to do anything if you're lucky. I accidentally knocked a shell onto a spring. The shell went directly upward, hit the ceiling, came back down, hit the spring, etc.
I think I almost beat it...then I went back to the game and I had restarted at the checkpoint before the one I was at. I died on some spikes right before the checkpoint, and I was scrolled all the way back to the start.
Huge glitch...tap ctrl and space repeatedly and he runs like hell, I beat this game in under a minute :/
Also, is there even something to run from on the last level?