He is a parody of the character Tom from Tom and Jerry.
The Itchy & Scratchy Land is an Itchy and Scratchy theme park. It has parades with robots resembling Itchy and Scratchy which are supposed to be inoffensive and only attack themselves. While on vacation, the Simpsons were attacked by a group of robots, until they used the cameras flashes to short circuit them (the reason flash snaps are not allowed).
In "Treehouse of Horror IX", Scratchy finds a love interest in Snowball II.