Kinda feels like celeste - haloween edition. Work a little on the game feel (movement feels a bit floaty, like a ghost hehe), some more sound effects during the movement and animation frames to spice it up. The main mechanic of turning into ghost with limited time is the best part and I would leave it as it is! Oh and the last jump onto spikes, I didn't realise I can sprint, so whole game before that is doable without the sprint. The last jump I've had to use it and it was much easier :)