The game has the potential to be great. If it had some sort of reward system, it would become even more user-friendly. I enjoy hardcore games, but only if they are fair in their difficulty.

Some feedback:

• The player gets stuck on walls if you move into them.
• The lava/acid colliders were bigger than they appeared
• The levels seemed to be variations on each other. It's okay to have small repeated parts, but it's much more fun if the layouts are different each level.
• You should upload a web build to itch (make sure to set compression to Gzip in build settings) so that more people will play and rate it

However, the art was nice and I liked that you used some post-processing to make it more enjoyable. I think you could have done more playtesting and polish before submitting. Nontheless, well done for getting the game out on time and I hope you'll keep working on it!

you solved the issue well, good job

You did good with the theme and the mechanics, it's just that there should have been   a little bit more diversion in gameplay. Good  job tho.