Not bad, I liked it, only things i'd change is maybe the pacing of it to make it a little harder, and the sound effect for when you pass a note properly, i've found it kind of annoying personally.

Neat! I feel like it could need some more stuff (multiple lines especially), but it's a solid core for a rhythm game. Well done.

Quite enjoyable! The only thing I really have to say is 1. since there are 2 lines on the left, I assumed you have to get the number between them, 2. why is there a time signature if it doesn't really have any meaning, 3. imo the difficulty ramps up too slowly, and 4. so much more could be done with this. Multiple lines of numbers. Different numbers making different-pitched sounds. Some cooler graphics. As it is, though, it's perfectly fine.

It's got potential. I wish the beat would speed up faster. Would be best to time the beat with the number touching the line, too, so the player has an indicator. Great job sticking to restrictions, though.

I got to 131!