Pig has extra legs, giving him super fast walking abilities.
Goat has oatmeal mind powers.
Banana has super eyeballs. Later on in the episode, he became a villain and was made into a rotten banana, but he later returns as a superhero after the Space Meatball he captured smashed his rotten banana peel suit.
Cricket didn't get a superpower from the radiation. He attempted to get radiation from a three eyed walrus, but the plan backfired by making him sick instead.