Monkalruses are enemies in Mother 3 that are found on Tanetane Island. The Monkalrus is a chimera which consists of an ape-like creature with a walrus' head, hence the name. They possess the ability to flick fleas on Lucas and co., and are also one of the possible creatures that an Eerie Smile actually is. They can also take a powerful swing, which has a chance of causing forgetfulness.
Upon defeat, the Monkalrus has a 3% chance of dropping the Mystical Gloves, Kumatora's ultimate weapon.