Really nice art and idea, specially for your first gamejam!
The level design was very interesting, I really like the use of limited moves as a puzzle mechanic, it's like bringing a more rigid move-based puzzle game into the platformer genre.
The controls and the feel of the character were kinda off, for example, it's kinda weird to need the mouse just to click for attacking (Maybe it would've been better to move with the arrow keys and attack with Z?), and the gravity felt way too high and the wall jump is a little awkward to use. I'd also recommend to use capsule colliders for the player character and reduce the collider a bit, because sometimes I'd get hit in a corner and plummet down, which was kinda frustrating because losing a jump almost always meant having to reset the level.
The art is really nice, but just as a small nitpick I'd say that the interactable objects in the background like the moving platforms and stairs could've been a different color, because they were the same color as the pipes used in the decoration, still nice looking though!
Keep going at it, I can feel a lot of potential!