Eerie Smile

The Eerie Smile is how enemies are perceived while under the effect of hallucinogenic mushrooms on Tanetane Island in Chapter 7 of Mother 3. The Eerie Smile is not the actual form of an enemy; in fact, it may be the Zombieshroom, a Monkalrus, a Titanian or an Ancient Dragonfly.

Battle Memory description
''What you see isn't always what you get. This eerie grin doesn't actually exist.''