I think that's the name of the ghost from the nintendo games...
I just thought of a special type of AI Bot that would be that of Boo from the nintendo series. When you move forwards without looking at the AI, the AI creeps towards you. But, when you look AT the AI itself, it stops moving. Therefore, that of Boo from the nintendo games. I'm not sure if this is possible, but if it is, I think it would be an interesting addition to Blockland.