Headless Snowman 64

This game was apparently to be made to satisfy lovers of the second bananas by featuring a ridiculous cast of both well-known and obscure characters (that weren't Luigi) from Samus Aran to "random audience members from Super Punch-Out!!" to the Headless Snowman himself. Additionally, the game would supposedly contain some non-Nintendo characters such as "one of the civilian women in GoldenEye 007" (in the mistaken belief that her name is Luigi), "that bald guy from Blast Corps" and "the bikini woman in Cruis'n USA". Humorously, this never-made game wasn't going to feature Luigi.