Freddy Update

Oliver: "Last night Freddy killed 900 monsters. That's a lot!"

He explained that Freddy could make some kind of energy ball appear in his hand "and it can destroy monsters!" He told me the name of the ball, but I couldn't make it out. It was one of his nonsense words, I think, although it could have been a word learned from one of his friends at school. The concept sounds like something out of a cartoon - Dragonball Z or Pokemon? Sound familiar to anyone out there?