Time trial platformers with a good deal of movement options are always fun so this seemed like my kind of jam. I used a controller, for reference.
The core gameplay is pretty good. I like the extensive moveset which all ties together. There's a fair amount of depth with the movement and using it with your environment to traverse it. There's a fairly simple pleasure in just traversing the environment. I'd have loved a sandbox area prior to the trials to just mess around with my movement, as the space you gave was a bit small.
My main problem here is a lack of feedback when doing the different moves. I imagine it would've been difficult, but some different animations to signify which jump/state you're in would help a lot in terms of clarity and playing through it. I wasn't sure if I did a backflip, for example, due to this.
Alongside that, I feel like the aberrations were kind of backwards in terms of fun. Instead of removing tools for the player (which is what makes your game fun at it's core!), you should've added obstacles that required you to use your moveset further. That is a bit harder and would've required more development time - but it felt a bit backwards to lose parts of my moveset.