i love the graphical style! Really nice combination of ideas as well. I think the best thing to improve it would maybe add a little more indication of when a key is successfully pressed. I wasn't really sure if the key presses were actually synced to the music at all.
So many points for graphics though. btw, your rhythm game section music is also used in another game here, Hamster Energy Co, coincidentally. not that thats a bad thing, its free music and its a good song! Just was kind of funny when I realized it.
great job and thanks for the fun time, i have now converted all of my money to uncoin. i cant wait to be rich...