This is a pretty reasonable platformer and the roll mechanic feels really fun to use! It’s just that… falling over is really not fun. If there was some way to mitigate the damage, then that could be fun design, but at least for the parts of level 1 that I saw it didn’t feel like there was anything I could do except for jump and hope that I made it over the jump. I didn’t see any opportunities for decision-making.
Thank you for providing a Linux version! It was easy to use and it worked well for me.