King Thwomp appeared to be a normal Thwomp that Kamek enlarged.
King Thwomp behaves similar to a regular Thwomp, but moves from side to side in addition to dropping when Mario is underneath, which will break a layer of the blocks that make up the floor. When all layers have a hole through them, Mario and company must aggro him to force him to crash through the floor, and fall into the bottomless pit below.
- The fight with King Thwomp is similar to the final battle against Bowser in Super Mario Bros. 3, as players must force the boss to fall into a bottomless pit sealed by layers of blocks.
- The Winged Thwomp in Super Mario Maker behaves similarly to this boss, moving from side to side when not dropping or rising.
|Newer Super Mario Bros. Wii bosses|
|W1-Tower/Castle King Fuzzy • W1-Airship Iggy Koopa • W2-Tower/Castle King Thwomp • W2-Airship Roy Koopa • W3-Tower/Castle Ricky Wrench • W3-Airship Morton Koopa Jr. • W4-Tower/Castle Samerguy • W4-Airship Lemmy Koopa • W5-Tower/Castle Pyro and Cryo • W5-Airship Wendy O. Koopa • W6-Tower/Castle Boolossus • W6-Airship Larry Koopa • W7-Tower/Castle Mega Topman • W7-Airship Ludwig von Koopa • W8-Tower Kamek • W8-Castle Bowser|