Mappy (マッピー?) is a fictional character and the eponymous protagonist of the Mappy series. He is a anthropomorphic white mice who's a police officer that goes after the criminal cats Meowkies and their boss Nyamco.
Mappy heard the whereabouts of Nyamco stealing valuable items keeping them in his warehouse. Luckily, Mappy was able to stop Nyamco and his Meowkies, go though the warehouse and obtain the stolen goodies.