Felix The Cat is a video game released in 1992 for the Nintendo Entertainment System and in 1993 for the Game Boy, published and developed by Hudson Soft. It is based on the cartoon character Felix the Cat.
The game involves the player controlling Felix the Cat as he sets out to defeat the evil mad Professor who has kidnapped Felix's lovely girlfriend, Kitty. The Game Boy version plays virtually the same as the NES version, but features fewer levels.
Source: Wikipedia, "Felix the Cat (video game)", available under the CC-BY-SA License.