A cute little puzzle-platformer with a unique 'inflate' mechanic. I would recommend looking into implementing Coyote Time and Jump Buffering to make the platforming feel a little smoother. And it would be great if the restart just restarts the current room, rather than the whole game. I got pretty far, but then used up the air canisters and restarted, thinking it would just do the room. So restarting the whole game was unexpected and disheartening.
But overall, this is a great start! Good work!