Rat Attack! is an arcade-style puzzle game for the Nintendo 64 and PlayStation. It was first released on the PlayStation in 1999, and later on the Nintendo 64 in 2000. Its theme is that of a group of Scratch Cats stopping a rat invasion. It received mixed reviews after its several years in development. The game was slightly altered for its Nintendo 64 release, switching out one of the characters and changing one series of levels.