Very good work here. Your team put together a really well made game for this jam.
The game was quite an enjoyable experience to play. At first, I felt that the floatiness of the jump wasn't going to feel great, but it works really well once you get the grappling ability as it gives you a good buffer to hit those grapple shots. Grapple feels good to play around with and its movement is very satisfying once you get the hang of it.
Got some good design with the forcing of using new power-ups to escape where you get them as a form of tutorial (always a top notch design choice). Was a lot of fun finding the secrets that were hidden around the game, and having a fairly obvious "hidden area" in the Tower was a great way to introduce the concept and encourage looking for them elsewhere.
Interesting aesthetics with the graphics. I think that it really nailed the dream world concept that was going on with the story. Lots of nice touches with having parallax scrolling and blurriness with the background layers. Was nice that each character had their own portrait and the voice acting was a really cool surprise (certainly not something I expected in a jam game).
My only real want for the was that there were more abilities and areas to explore, but that's a pretty common want after a game jam due to time constraints. Also, when the feeling left over after playing something is that you just want more of it to play, that's a good sign for the quality of it. Great work.