I understand some of the struggles and timing issues you discussed in your previous comments and game page notes, so I won't hold that against you. I like your concept here. And if you are planning on putting any more time into after the jam is over I have a two suggestions that may help.
- Increase the gravity switch time. Make much faster, and allow for the player to continue to control the character. The Gravity Man stage in Mega Man is a great game to reference for this.
https://youtu.be/4PAKsDKk-CE?t=25 - Before the controls change, maybe try alerting the player a few seconds before it happens. Maybe an sound effect, or a flash on the screen. Something to tell the user, "beware, something is about to change."
Hopefully that is helpful and you continue to work on this. If you do, please shout out and let me know. I'd be happy to play test it again for you.
Keep on learning!
I'd love you hear your thoughts on my game and get a rating in return.