Anakin Starkiller said:
What about game trilogies? …Super Mario World is pretty beloved.
That’s #4.
…or 5, or 1, all depending how ya look at it. Japan had a different SMB2 than the rest of the world, so there’s 2 SMB2’s. The original Japanese title is SMB4: Super Mario World. But, as it’s just SMW everywhere else, it could be considered part 1 of it’s own thing.