Very fun and creative! I love the approach of just giving people the level and letting them find their own way through it; however, this came with a caveat: Flip gravity was too OP on all the levels. Designing your levels in a way that gives players freedom to solve it however they choose is a difficult task; I suggest looking into Legend of Zelda: Breath of the Wild's shrine level designs to get an idea of a way to approach a challenge like this.
I may have been more inclined to use the other abilities if I had a visual indicator of which on I was currently on. Cycling and testing out each ability was very confusing so I stuck to gravity flip out of frustration--bonus points if the character's appearance changes.
Overall, a great start. I'd love to see what you can do with a little more time to polish. Good luck with whatever you decide to do!