[She sighs heavily. Guess it's lesson time again - she's been doing this a lot since meeting Ralph. Huh.]

Okay, so, you've got your characters that are programmed into the game, right? They're supposed to be there and everything's all good, so they don't do anything weird, they just play their roles.

Then you've got glitches. Spare code that's ... not really supposed to be there but is for some reason. But since they weren't made to be in the game, their code's not all right. Sometimes that happens.