Togerobo

Togerobo (とげロボ, meaning Spike Robot) is an enemy from the Game Boy Advance game Wario Land 4, only appearing in the level The Curious Factory. They are robot enemies with spikes across their body. If Wario approaches one, Togerobo will drop its head which rolls along the ground, possibly harming Wario.

Wario can defeat Togerobo by attacking them from behind, or a Smash Attack on top when their heads have fallen off. Wario can also pick them up, but they count as heavy enemies which slow Wario down, and limits the distance he can throw.

The name "Togerobo" is a portmanteau of "toge", which means "thorn" in Japanese, and "robo", which is a prefix that derives from "robot".