This is a fun one! It's really easy to get into a groove. I could see this working well as a phone app too, with the one button controls.

It'd be cool to add background music that gradually speeds up as the game gets faster. :)

This is good example on how very simple game mechanics can be very fun. I can see this play very well on mobile. The simple art style was a good choice, but the game could use some sounds. Jump, death and background music would made this game even better. I hope you keep working on this game.

I found this one to be pretty tricky.

I think it would be valuable to add some kind of visual indicator to help newer players learn the timing and stay in the rhythm. Right now it seems to be just a case of knowing via trial and error, which can be a bit frustrating.

Really fun game when you get used to the controls!
The controls were really hard to get used to, it's intuitively difficult that you need to release the mouse to jump and hold it when landing.
It felt really good gaining momentum and grinding. More levels, different ways to gain points, and in general more variety would have been amazing but overall this is a really fun mechanic!
Good job!