This is a great game! Beautiful, strong visuals overall: great use of color and effects clever way to manage an inventory. Puzzles were maybe a bit too simple, I tried everything once and got it in one go, only once accidentally landing on spikes.
I'm also not convinced I know what the boots did? Did assume that the bottom unlock was only unlockable without oxygen, and the hookshot was fairly OP in terms of spamming/movement.
Nitpicking because the execution was fantastic, well done!