When playing as Kain from where ever you wish in the game (I reccomend from the beginning and saving in a different save file) hit pause and enter the following cheat. Up, Down, Left, Right, R2, L2, Triangle, Down, Circle. The screen will go black for a minute then come back up and Kain will say. "Fear the Tube." You can now beat on people with what seems to be one of the cardboard tubes you find under wrapping paper when you finish with it.