** Level 2 of Mario Zone is set approximately in the crotch area of a giant mechanical Mario. It's full of... balls. Big, bright balls, spiked balls, bears riding balls. Balls.
** In the first level of Space Zone, there is mound of rocks that resembles [[FlippingTheBird a certain rude hand gesture...]]
* DemonicSpiders: ''Those Wario heads in the final level''. They are incredibly annoying to fight and cannot be skipped. The final boss is just up ahead, and you do not want to lose your preferred power-up before you face him. Unfortunately these things bounce all over the place making them very difficult to predict, take multiple-hits and have an invincibility frame of their own, causing you to take damage from an ill-timed jump! You cannot be blamed for using the 100-enemy-star trick to defeat them. However, they can be killed in [[GuideDangIt one hit with a spin jump]].
* EvenBetterSequel: A longer, more elaborate, and all in all much better game than the first ''Super Mario Land''.
* GameBreaker: The Bunny Ears. You can float infinitely, descend slowly, and jump higher, but the lack of ability to spin jump (That the Super and Fire forms can do) causes some to call this a PowerUpLetdown than a truly useful power.
** Space Zone. See ''VideoGame/SuperMarioGalaxy''.
** A secret level in Turtle Zone has blocks and coins arranged to spell out "WARIO LAND 2". Six years after this game, there actually [[VideoGame/WarioLandII was]] a ''Wario Land 2''.
** In the "Files" screen, you have the option to erase your file by turning into a Bob-Omb with a Mario mustache and everything. Kinda looks familiar to ''VideoGame/SuperMarioOdyssey''. Funny enough, Bob-Ombs don't even appear in Odyssey.
* MemeticMutation: "[[http://www.youtube.com/watch?v=DhB8XG9_5Rc Obey Wario, DESTROY MARIO]]!!!" It proved so popular in its initial airing that the [[https://www.youtube.com/watch?v=fSsjLXjPbbI commercial]] for ''VideoGame/WarioLandSuperMarioLand3'' used the same "hypnotized by Wario" premise even though hypnosis ''doesn't'' feature in that game. Hudson Soft used the same premise when advertising Wario Blast Featuring Bomberman.
* MostWonderfulSound: Whenever Mario stomps on a boss enemy.
* ThatOneAttack: Wario ground pounds very often, the shockwave stun-locks you, leaving Mario open to attack.
** The three pigs in the Mario Zone, seeing as how they each take three hits to defeat, and [[CaptainObvious there's three of them.]]
** Tatanga's speedy movement, speedy projectiles, and wonky hitboxes put him right behind Wario as the toughest boss.
** Star Maze. Those stars are going to kill you many, many times.
** While it's expected that a final level would be difficult, Wario/Mario's Castle can be absolutely brutal. While the rest of the game (barring Space Zone) is relatively easy, the Castle is a difficulty spike that can be very jarring for first time players. Combine pools of acid/lava, swinging spiked balls, spiked traps, and several jumps that require almost-pixel-perfect placement, and you've got a tough level. And no checkpoints either. On the plus side, the Bunny Ears power-up makes the stage much easier to manage, provided the player is able to keep hold of it.