the name "super mario 128" was first used as early as january 1997 by shigeru miyamoto, as a possible name for a "super mario 64" sequel. this rumored expansion and sequel to "super mario 64" called "super mario 64-2" was said to be developed for the 64dd, but ended up being cancelled due to the 64dd's commercial failure. shigeru miyamoto mentioned at e3's 1997 convention that he was "just getting started" on the project.