Very nice.
- almost quit playing when I got stuck on an island in one of the first levels
- The bar recharging mechanic is somewhat unsatisfying. I feel like I have to play in a weird way just to get it up. Doing railjumps is fine (though I'd expect a continuous gain while grinding), but on the ground I need to bunny hop to fill it up? That was annoying, because it went against the movement feel and also hard to do because I might do a double jump instead of a bhop. Also, when coming to a standstill, it would be nice if it'd fill up to quickly get back into the game without havint to reset.
- The red walls need some emissive overlay to have them consistently lit from all sides. Had parts where I thought they were grey walls because of the shadow.
- The swinging obstacles aren't fun to deal with at such a high speed and the amount air control. Also, because it's first person, it's hard to see where they are when you're next to them. Maybe push/knockback the player instead of forcing a reset?
- Grappling I rarely used, only when I felt I was too far away for dashing which quickly became my goto move.
- Initially I didn't think to use double jumps because I thought they were connected to the charging meter and I didn't want to waste it.
- the tutorial text needs more space and the tutorial itself could be a bit more elaborate in giving space to test the mechanics
- I didn't like the linear levels in an open environment. Choosing my own path, based on my current momentum, felt much nicer. It's probably fine once you have the mechanics and the level layout down.
- sometimes it wasn't clear after finishing a rail if I could still double jump
- Sometimes it wasn't clear how far away the tapes were. Having some outline indicating that they're currently behind a wall and also a distance number would help. On levels with multiple tapes collectable it wasn't always clear which one was the closest one.
- didn't like the pixel post processing
- tried the level editor, but didn't do much with it
Apparently there is a replay system? Well, I made a video ...
That's all from the top of my head. I'll definitely steal the rail grinding :>