Cookie Monster Munch
When Atari decided to create a children's series they needed several popular characters to slip into the games, naturally Sesame Street was one of the first places they looked. Cookie Monster, Oscar the Grouch, Ernie, Big Bird, and Grover were all given their own games in the Children's Computer Workshop Series (CCW). A sixth CCW title called Count's Castle was also planned but never finished.
Being a children's game, the gameplay is quite simple. Using the large buttons on the Kid's Controller you must guide Cookie Monster around a simple maze of pathways picking up cookies and placing them in the cookie jar at the bottom of the screen. After each round Cookie Monster will eat all the cookies and give you points. According to the manual Cookie Monster Munch was suppose to teach children hand-eye coordination and relational concepts such as Up, Down, Left, and Right.
I don't know how many children were actually forced to play these games, but they probably still have flashbacks to this day (there's a cookie, no wait there's another cookie, the cookies are everywhere! Make them stop!!!) Nothing like turning today's children into tomorrows regular Atari customer (hook 'em while they're young). Maybe it's just me, but if you were a small child wouldn't you rather learn hand-eye coordination from Missile Command than from Cookie Monster?
Here is a prototype overlay for Cookie Monster's Maze (notice how it's misspelled "Cokie").
Here's a picture of the Cookie Monster's Garden overlay from the 1983 CES show