I feel like I should like this game more than I like it tbh.
The platforming feels good, shooting has the proper feedback, everything has particles, screen shake, sound effects, etc.
But it feels like something's missing; I think this game doesn't really have anything "special". There's no unique mechanic, no unique spin on an idea, no unique narrative or even unique setting. It feels very by-the-book; "a platforming game must be able to jump, have collectibles, moving platforms, etc".
If this game had a unique something, anything, it'd probably be my favorite of the jam, but it lacks this spice to make it trully great. It has all the fundamentals of game making nailed down, but it need more courage to experiment with new mechanics, new themes, new ideas, to create something unique.
A great book isn't one that has no spelling mistakes in its words but one that makes something new with the words, and I think the same applies here. It got the basics down, but it would greatly benefit from going a bit wilder with its ideas.