Posted on 12/29/2016 at 07:24 PM
| Filed Under Review
See also: Final Fantasy II, Ultima II, Joust II, Donkey Kong Jr (and DK 3), Super Pac-Man. Other than FF2 these examples came from non-NES sources.
A lot of game companies just wanted to make sequels bigger, better, more convoluted, and differentiate them from their originals. That's the thought process that guided these games.
Compare that with better-received sequels like Galaga (sequel to Galaxian), Ms. Pac-Man (an unofficial sequel made in the US; Super Pac-Man was the "official" sequel made by Namco of Japan), Xanadu (Dragon Slayer II), Mega Man II, Dragon Quest II, Metroid II. Also third-generation sequels like SMB3, A Link to the Past, FFIII, and Ultima III. These games kept or returned to the basics of the original game and built on that instead, and the series generally followed that template thereafter.
Also agree that I liked what was called Super Mario Bros 2 in the US better than I did what was called SMB2 (The Lost Levels) in Japan. Considering that enemies like Birdo, Shyguy, and Sniffit made it into Mario canon, Nintendo must have liked it, too.