Thank you for the very in-depth opinion and feedback! Regarding your points:
1. The movement actually varies a bit, the ice is slightly more slippery, while the mud slows you down (a bit buggy), but i can see how these can be indistinguishable, and the general movement too slippery.
2. I believe that's a product of using an outside program for the level design, so tests were few and far between, i was eyeballing most of the jumps 😅
4. It gets even easier when you unlock the Fire Charge, you just press F to delete all nearby enemies, we actually had a shield enemy type planned, but lacked just a few days to implement it
5. Thanks for these suggestions, i guess we just didn't think of that during the rush
On the jump you're struggling with: the player can wall jump, not only between two walls, but also on just one, keep holding D and Space after you get to that wall on the right, you'll clear it with ease.
It's always so nice to read a comment with a bit of effort behind it, i hope you'll go back and finish the game ❤️