
Why Is Super Mario Bros. 2 Missing a Level?
Level 7-3 only exists in the backstory to Doki Doki Panic.

The Enemies of Super Mario Bros. 2
The most successful Super Mario Bros. 2 alum is not the Shy Guy.

The Legacy of Super Mario Bros. 2
Every little bit of Super Mario Bros. 2 that eventually made it into later Mario games.