Abby's Rhythm is a single-player rhythm game on Scratch! You press either the arrow keys or the WASD setup to hit notes to go in time with the music. You have to hit at least 75% of the notes to clear a level. There is a large-readout variable that displays the percentage of the notes you hit. The full game will be free, given that this is Scratch.
This demo only uses Carol Roll by BBPANZU. This game is an unofficial appearance of a Mii made by Nintendo, named Abby. Abby appears in Wii Sports, Wii Sports Resort, Wii Party, and Wii Music. I do not claim ownership of Abby, who is likely to have originated from a central recourse somewhere in Nintendo, nor do I claim ownership of Wii Sports, Wii Sports Resort, Wii Party, and Wii Music, which are games published by Nintendo. I also do not claim ownership of Miis, which are trademarks of Nintendo.