Nice game, and congrats on completing the game jam! I played through til the Magnetic level, not sure how to beat that one. Definitely found it challenging at first, I realized you have to slow down and try to control it a bit more and that helped but had to play each level a few times to get past it. I like the concept and the graphics are quite nice, especially with the jam time constraint. It's awesome that you made so many levels in such a short time.
A few bits of hopefully constructive criticism:
1. As far as I can tell if you want to restart the entire level you have to hit escape a few times and then hit Enter. On web, this also takes you out of fullscreen mode. So restarting the level is a bit of a pain because then you have to also make it fullscreen again.
2. Theme wise I marked down a bit because it feels like the pumpkin could have been anything and it would have fit the aesthetic, I would have liked to see maybe a bit of something to tie it into the environment more than just the seeds.
3. Sometimes while in the tubes the camera would jump around a lot and it would be disorienting, sometimes I even found myself going backwards while only pressing W because the camera would spin around in a hectic way.
4. Sometimes because of that camera flip? thing you'd press W but you'd be going backwards. Basically then all your controls are reversed at that point. This happened a lot on the Magnetic level as I ended up on the bottom of the tube (but also on other levels).
Thanks for the fun! :D