hello i tried it for a really short time, is it really supposed to be speedrun? the character goes way too fast to play in a speed way, you need to wait and to be careful about the spikes if you dont want to die, so i think you should reduce the speed or put more space between the spikes.
also i think the spikes and the background are too close in color, you should make 2 completely different colors so it would be easier to avoid them, especially if you try to make a really fast game
I think it could be nicer to control if the character took more time to be at full speed as well.
Anyway, i did a small prototype too and i would love to get feedbacks, if you wanna try; https://kamigarp.itch.io/hkinspiredgame