Thwimp

Thwimps are smaller variants of Thwomps that made their first appearance in Super Mario World. Their name is a portmanteau of "Thwomp" and "wimp," making reference to their diminutive size.

Super Mario World / Super Mario World: Super Mario Advance 2
Thwimps appear in both the SNES and the Game Boy Advance versions of Super Mario World, where they are enemies and hop back and forth in large arcs trying to land on Mario or Luigi. They first appear in #2 Morton's Castle. They usually appear in groups of two and create obstacles in small hallways. In #3 Lemmy's Castle, the Thwimps created by Magikoopas can be destroyed by shells. However, the Thwimps are only vulnerable for a few seconds, after which the shell will have no effect.

Super Mario Advance 4: Super Mario Bros. 3
A lone Thwimp is found near the beginning of the World-e level Swinging Bars of Doom in Super Mario Advance 4: Super Mario Bros. 3. It uses the same sprite as in Super Mario World and can now be defeated by Statue Mario, Invincible Mario, or by Hammer Mario's hammers.

New Super Mario Bros. U
Thwimps reappear in New Super Mario Bros. U. They act the same as they did in Super Mario World and also have the same overall appearance. They can be defeated by hitting a ? Block while the Thwimp is sitting on one or by carrying a frozen enemy under one. Additionally, blue cracked blocks can be spotted on the places where Thwimps stomp. They only appear in Wendy's Shifting Castle and sometimes spin while jumping.

The Thwimp is one of the very few enemies that does not reappear in New Super Luigi U.

Mario vs. Donkey Kong
Thwimps also make a few other appearances in later games such as Mario vs. Donkey Kong, where they are enemies that appear in the Spooky House world of the game. The Thwimps try to defeat Mario by landing on him and are invincible, but once again, Mario must avoid them to defeat Donkey Kong and beat the level.

Puzzle & Dragons: Super Mario Bros. Edition
Thwimps reappear in Puzzle & Dragons: Super Mario Bros. Edition as part of the "Thwomp and Thwimps" enemy. Like all the others in the game, they can assist Mario and Luigi in his adventure.

When encountered, the Thwimps and Thwomp take only 1 damage from every attack unless their defense is lowered or a high enough combo is accumulated. If the Thwomp and Thwimps are not defeated before their turn counter hits 0, they deal enough damage to KO Mario and the rest of his team.

Minecraft
In the Super Mario Mash-up, in Minecraft, Slimeballs are replaced by Thwimps.

LEGO Super Mario
A Thwimp is one of the figures in Series 2 of the Character Packs in the LEGO Super Mario line of merchandise.

The Legend of Zelda: Link's Awakening


In The Legend of Zelda: Link's Awakening and its two reissues, The Legend of Zelda: Link's Awakening DX and the Nintendo Switch version, they are named Thwomp whereas only one actual Thwomp, which is named Mega Thwomp, makes an appearance.

Thwomps behave similarly to Spiked Thwomps and, by extension, Thwomps in the Super Mario series. They are small, square-shaped enemies which have only one eye, like with Spiked Thwomp. Thwomps are only encountered in the side-scrolling passages in Face Shrine. Whenever Link approaches a Thwomp, it drops to the ground and, unlike Spiked Thwomps, it rises back up to the ceiling afterward. Link can goad Thwomps into dropping so that he can pass by them as they rise back up, but Link also has the opportunity to use the Pegasus Boots to quickly charge underneath the Thwomps while they drop. In The Legend of Zelda: Link's Awakening DX and the Nintendo Switch version, Thwomps are blue while on the ceiling, but become red and angry while attacking.

The Legend of Zelda: Oracle of Seasons
In The Legend of Zelda: Oracle of Seasons, Thwomps are encountered in the sidescrolling areas of Snake's Remains. They act the same as in The Legend of Zelda: Link's Awakening, although a Pegasus Seed is used to charge underneath them instead of the Pegasus Boots.

Trivia

 * During development of Super Mario World, the Japanese name of Thwimp, "Coton", was going to be "Pochon".