Its head is crammed with knowledge, such as insect and flower names and how much certain things cost. -Battle Memory

The Heftyhead is an enemy in Mother 3 which attacks either by causing shockwaves with its massive head, which affects the whole party, or by using a headbutt attack, which affects only one member. It occasionally wastes a turn stumbling, and can also use PSI Counter. It is weak to being turned around. Its battle theme is Strong One. It is also notable for its chance to drop a Mystical Stick, a considerably powerful weapon for Lucas.

Its battle sound is Battle Sound 10 which falls under Code Numbers 466 for regular attack, 467 for Smaaaash! and 468 for Miss.