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Wario Land: Super Mario Land 3
In Wario Land: Super Mario Land 3, they attack Wario by spitting mines from the pouch in their beak. These mines will explode a few seconds after release; Wario must run away from them before they explode. In this game, they only appear swimming in water.
Wario Land II
In Wario Land II, Pecans appear as heavy enemies. They attack by spitting spiky fish out of their beaks at Wario and are seen walking on land, usually in castle levels. Pecans act in a similar manner to Grunts.