Pipe Master

Piper is a creature that lives in the Warp Pipes of Pipe House during the events of Mario & Luigi: Superstar Saga. He gives Mario and Luigi some helpful advice about the Warp Pipes of the Beanbean Kingdom. He is quite friendly and helpful.

He looks like a Bullet Bill with no eyes or a frontal curve and literally lives in the pipes. Some say he might be a Beanified Bullet Bill.