Cute game and interesting interpretation of the theme into a platformer! The rectangle and sound effects are cute and work well together. I did find the expanding while jumping mechanic a little bit fiddly and hard to get right. 

Overall, I enjoyed the game and level designs! 

You missed opportunity to have confetti come out of the final white dispensers...

That aside, this was a fine little puzzle-platformer that could have been just a little better in pretty much every area. The controls could have been a little tighter, the visuals could have been a bit more detailed, and some music would have been nice. I also would have liked if the "press escape to pause/restart" tip was a couple rooms earlier since there is one earlier where you're still able to fail. Still, the game does tie into the theme very well.

I really liked the trick jump and your puzzle logic! Also your sounds were very cute, sounds like you voiced them all. 

I won! I like the graphics a lot, especially the player rectangle (so cute!!). I had some trouble with jumping and then I realized I could use the momentum from when you expand to jump a bit higher. I had fun!

The user experience could use some work (in particular, having so much friction between the player and vertical walls that the player has to stand still before jumping doesn't feel great) but this is a solid interpretation of the theme