Stain

Chibi-Robo cleaning up a stain using the toothbrush

A Stain is a mess that Chibi-Robo can clean up using the Toothbrush. When a certain amount of stains has been cleaned up, a Cleaning Bonus is given to Chibi-Robo by Telly Vision. There are several known types of stains.

Oil

Main article: Oil

Oil takes longer than most stains to clean up. It often indicates a Spydor attack.

Scribble

Main article: Scribble

A Scribble is a stain accidently drawn on the floor by Jenny.

Pawprint

Main article: Pawprint

A Pawprint is a paw shaped stain on the floor. It is when Tao tracks mud into the house.