Cool idea, and pretty good music. Very difficult in getting the timing and watching the note cursor.

This one took me a while to figure out, but it's a great idea! For those who are confused: it seems you need to use the arrow keys to move the box on the grid onto the indicated numbers when the reach the top. 

Nice to see another rhythm-based game in the jam!

Hard to understand initially as the "player" isn't very obvious and the window for correct input is so short I still failed when giving it what I hoped was correct input (which then made me think the correct way to play was wrong).  A very interesting concept once you get the hang of it and it does feel really rewarding to get a streak of notes in correct timing. Personally I'd like a bit more lenience on mistakes, but if you wanted your game to be for high skill players only then I can appreciate that.