- Franchise Killer: Despite critical praise, the low sales of Wario Land: Shake It! has seemingly prevented the series from getting another game since then, with WarioWare quickly taking over as the prominent Wario franchise whenever Wario gets any series representation most of the time, such as Super Smash Bros. and Super Mario Maker.
- Fandom Life Cycle: Along with its related series WarioWare and the other Wario games, probably one of the only series that both sells more than a million copies and yet is still somehow in phase 1 of the list, with it somehow having nothing of an organised fandom. Various people have questioned exactly why this is.
- Marth Debuted in "Smash Bros.": Dr. Arewo Stein from the Japan-exclusive Game Boy game For the Frog the Bell Tolls makes several appearances in Wario Land 3 (referred to as "Mad Scienstein") and 4.
- Name's the Same: Shake It has a level called Mt. Lava Lava.
- Word of Dante: While it's never been mentioned in the games, Famitsu magazine referred to Captain Syrup as "Maple" in a Shake preview, implying that her full name is Maple Syrup.
Trivia / Wario Land