Animal Crossing (2001) Animal Crossing: New Leaf (2013)
Sonny Resetti, usually referred to as Mr. Resetti or just Resetti, is a mole that appears in the Animal Crossing games. His job is to make sure that players always save their game before quitting - and that means no resetting. Each time a player resets, Mr. Resetti becomes more hostile towards them, and resetting the game too many times may even lead to a "fake" reset.
His first name is revealed to be "Sonny" in City Folk by his calmer, older brother Don Resetti.