Super Mario Land 2, like many Nintendo games, has its share of charming details and references:

- Wario's Debut: This game marks the very first appearance of Wario, who would go on to become a major character and anti-hero in the Mario universe. His design and personality are fully established here.
- Tatanga's Return: The Space Zone boss, Tatanga, is the main antagonist from the original Super Mario Land. His appearance here is a nice nod to the first Game Boy Mario adventure.
- Mario's Castle: The entire premise of the game is Mario trying to reclaim his castle, a unique setting for a Mario game at the time. The castle itself is shaped like Mario's head.
- Game Boy Camera Cameo: While not in the game itself, Wario would later star in Wario Land: Super Mario Land 3, which was originally conceived as a direct sequel to SML2. The Game Boy Camera also features a stamp of Wario from this game.
- Sound Test: On the title screen, if you hold A + B and press Start, you can access a sound test menu to listen to all the game's music and sound effects.
Enjoy the Details: Take a moment to appreciate these small touches that add to the game's charm and legacy. They show the care and creativity put into the game's development.
Compare easter eggs & fun facts inMario Kart 8 Deluxe