Super Mario 64 2

Super Mario 64 2 is a cancelled Mario game that was going to be the sequel to Super Mario 64. It was going to be for the unpopular Nintendo 64DD. It was cancelled early in production; only one demo level was ever made. It is possible that some concepts of this game are included in Super Mario 64 DS. It is also possible that Super Mario Sunshine or Super Mario Galaxy could have elements from Super Mario 64 2 like Nintendo said in a past E3.