Monkey Music © 1982 Atari, Inc.
Unreleased prototype.
Model CX26106
This is an early version of Grover's Music Maker [Model CX26106], which stars a monkey instead of Grover. This version of the game is a bit different than Grover's Music Maker as it has standard game variations instead of different letters, and there are some slight graphical glitches as well.