I like the movement! It's quite fun to platform with these mechanics, and the speeding up mechanic felt pretty good to use. I especially like the wall boost mechanic and I see lots of potential for using it in fun ways. In the future, it would be nice if the boost was like an actual jump and had some animation so that it doesn't look like the player is just teleporting up, but the mechanic itself is quite nice.
I also found it weird when I was trying to jump but was also near a wall. It would register me being on the wall first and would perform the wall run rather than a jump. I think in most scenarios, the player would intend to jump instead, so having the jump be performed as priority rather than the wall run would be a good change.
And slight nitpicks, I think the death SFX was a bit long, especially since you respawn so quickly. I like the fact that you respawn quickly though, so maybe if you could get a shorter death SFX that still fits, that would be good. I also found the timer to be a bit strange, mostly due to it not standing out in the UI. I had completely forgot there was a timer, so it surprised me when I lost because of it. Maybe if the UI for the timer was larger and in the top center, it would be more noticeable. Depending on your level design and your designs goals, I'd say the timer mechanic you could keep it or leave it.
Overall, pretty cool game! Graphics are really nice and the platforming itself was fun and never frustrating for me. Congrats!