The title is no more deceptive for using an expansion chip than a game like Mario Kart is deceptive for calling itself an SNES game even though it also used an

The title is no more deceptive for using an expansion chip than a game like Mario Kart is deceptive for calling itself an SNES game even though it also used an expansion chip. Almost any popular SNES game you can think of came with extra technology included in the cartridge and commercials often bragged about it, like the SuperFX chip used by Star Fox. Heck if it weren't for expansion chips, you wouldn't even be able to play Super Mario World or Zelda, since the SNES had no persistent storage, all save games were stored physically on the cartridge itself.