the art initially drew me in! i love the little cat guy! the gravity flipping mechanic is well implemented!
i do have a couple of critiques to give out
-checkpoints would definitely help since the level design does spike (hehe get it) up in difficulty pretty quick. would definitely easy up the frustration players get with small milestones inbetween the longer levels
-sfx would add a lot for the platforming, audio cues can help with timing and positioning.
-having a visible number countdown would really help in figuring out how much time you have left. going off vibes does cause players to be more rash in their platforming.
overall i see a lot of potential for this game to get better if you decide to polish it more! good job!