Ankiron

Ankirons are enemies that Wario encounters in Wario World. Ankirons resemble huge armored turtles with cannons sprouting out of their shell. In fact, Ankirons are so huge and heavy that all they can do is turn in place. Ankirons fire bombs with humanlike faces at Wario, who can throw the bombs right back. They explode after a short time, however. Ankirons can also hide in their shells to protect themselves against Wario's powerful punches. If Wario continues to punch a protected Ankiron, it comes out (though still unable to be damaged) and fires its ammunition (depending on species) in all directions. In addition, as Wario comments in the game's North American instruction booklet, these enemies smell like feet.

Aside from the basic Ankirons in Excitement Central, other varieties include Skeletal Ankirons in Horror Manor, Circus Ankirons in Wonky Circus, Ice Ankirons in Shivering Mountains, Rhino Ankirons in Beanstalk Way, Stuffed Ankirons  in the Mirror Mansion, and Mummy Ankirons in Pecan Sands. Aside from looks, Skeletal, Circus, and Ice Ankirons behave exactly the same way as normal Ankirons. Stuffed Ankirons can fire many bombs at once, while the Rhino and Mummy Ankirons shoot flaming bombs that damage Wario on contact until they cool off. However, the Rhino and Mummy Ankirons behave differently when they are attacked while protected, with the latter firing fiery bombs, while the former only fires normal bombs.

Their name comes from Ankirosaurusu (アンキロサウルス), the Japanese spelling of the dinosaur name . In English, their name may be interpreted as a portmanteau combining the first three letters of said dinosaur name with the word "iron".