Suggestions

[Random Talking Bush]

I dunno if it's worth debating, but if the NES version is what was changed them you might want to put that back to SMB2J because that game was never released in the US. It didn't become "the lost levels" until it hit the SNES.

Nintendo themselves called it Super Mario Bros.: The Lost Levels during the Hanabi Festival, so I feel it should stay that way. If anything, I'll add in "Super Mario Bros. 2 (Japan)" after the name.