Rocket Pigs resemble ordinary pigs but they are attached to a big rocket, only appearing in Spyro 2: Ripto's Rage. When they see Spyro they jet towards him in a kamikaze-missile attack. They can be easily defeated by flame or charge attacks, or they can be dodged in an effort to let them kill themselves.
There is a funny instance in Metropolis where one of these rocket pigs are constantly being shot at by one of the space cows from behind, but it is never killed by this. After being shot, the pig will zip around in the sky wildly then land back at its original spot.