very inventive little game! i wish i could see more levels, but like many of the commenters here, I found it difficult to get particularly far. jumping on bubbles is a very cool mechanic - i just wish the bubbles lasted longer! but i know it's meant to be a really hard platformer, like Celeste, and i appreciate that you haven't oversimplified it. (maybe an Easy Mode with longer-lastings bubbles would encourage the less skilful of us to go further...)
the graphics look great and the levels that i saw were very well designed. well done!