Overall, fun game. I feel like the speed progression should be a little more smooth, as it starts off slow, but when it speeds up, it kinda just takes off..just me.
I also found a bug, where if you just spam "W" nonstop, when you fall off a platform, the "GameOver" screen doesnt trigger, forcing you to quit the app and re-start..
[Although its highly unlikely anyone would do that] Takes about 3-4 "Attempts" but it can be re-created.
Otherwise, Great Work!!