I realize this is an odd topic but it's one you don't see much information on. Unlike their regular counterparts, these end up with "Not for Resale" on the label and a part number headered with "DIS-". Currently I own two: Kirby's Dream Land 2 (DIS-DMG-AKBE-USA) and Tetris Attack (DIS-DMG-AYLE-USA). Beyond those I know of these:
*Donkey Kong Land
*Donkey Kong Land 2
*Ken Griffey Jr. Presents Major League Baseball
*Kirby's Block Ball
*Pokemon Gold
*Pokemon Silver
*Wario Blast
*Wario Land 2 (?)
Have any others been discovered over the years? I know a Legend of Zelda: Link's Awakening cart has been turned up, but from all appearances its just a regular game with a sticker on the back.