Absolutely beautiful.
I think it's safe to say that this is just about as much fun as i've ever had with a platformer. thinking like a snail took some getting used to, but i ended up loving the game so hard that i took the time to find all 100% items. i still can't find your first snelk room, damitall, but i'll get there! somehow!
The gravity snail upgrade was absolutely brilliant. after getting used to it, moving around was just such a breeze. it's part of what made the exploration so fun.
Thank you so much for making a competent endboss. i don't think i could've stomached an anticlimactic weakling. i will say this, though- knowing to use the invinci-shell ability sucked all of the challenge out of its deadliest attacks. Maybe you should make that ability less powerful?
if there's just one criticism i would make, it's that the art is somewhat lacking. the flat colors of all the characters and the environments is kind of out of place in such a great game.
Anyway, wonderful work. i'd love to see more from you in the future!