Klampon

Klampons are enemies in Donkey Kong Country 2: Diddy's Kong Quest that replaced Klaptraps from the first game. Klampons are relatives of the Klaptraps, and are considered to be the "big brothers" of their predecessors. In fact, Klampons are almost exactly the same as the Klaptraps. Although they are a bit larger, they share the properties as their predecessors, invulnerable to a frontal attack, but a stomp or an attack from the rear will take care of them.

Trivia

 * According to the game's credits, Klampons belong to the "Kremling Kuthroats" enemy class.
 * Klampons appear to be related to the Klaptrap and Krimp; they're also impervious to frontal attacks.