I LOVE THIS GAME!! As a huge fan of neon white and other speedrunning 3D FPS platformers, this game scratched an itch in my brain that no other game in the jam has. The cute cat teleportation mechanic is really stand out, and I found myself just messing around with the movement so much due to how smooth it felt. Especially with the added feature of being able to shoot and teleport in mid air. After a few tries, I was doing so many skips and flying through the level. Despite little texturing, the visuals are really pretty, with the blue yellow gradient colouring being really nice, and the collidable surfaces were clear and lit well. I can tell that you are a fan of this genre as well, with all of the implemented skips and cool mechanics. The level design is truly peak. The little blue shooty things are so satisfying to use, and the orange trigger platforms add nice variety.
There is so much potential in this movement system, and I'd love to see this idea expanded into multiple levels. I think this system would serve well with multiple shorter speedrunable levels like neon white (if you haven't played it you should check it out), which would allow the mechanics to be introduced at a different rate, and would give more opportunity for unique use of the level design flipping.
One final thing is that I'd prefer the controls to be taught early on, and then for the UI to reduced, just to have more gameplay focus in the screen (the timer, sand bar, and reticle are good, the cat could be shrunk a little). I totally understand if you didn't have time for some of this though, and just needed to put it somewhere.
Overall, this is a really well made game, and I really enjoyed it!! The level design and tight movement really stand out, as well as many other good things. Great work making a cool and fun game!