hey hey, nice game! Its like a mix of super meat boy and celeste, with minimal graphics. Theres a few things that were annoying me, like when you fall without jumping first, you cannot jump. I also think the timed mechanics clash with the speedrunning, as you are forced to stop because of them.
I did really like the room with a lot of spikes and the one with shifting platforms and the spikes in the middle, because you had multiple ways of solving the room and have the ability to see which is fastest and its like "oh neat!".
I think you should put more rooms like that in the game, or even maybe different game sections that can be accessed by taking different routes, or shortcuts, or something to reward player doing weird stuff to go faster. thatd be a pretty unique twist i think.
Overall nicely done (: liked the weird floaty bouncy squares