Fusion
fusion= fusion is first introduced in the series of dbz in the fusion saga, trunks and goten are the first ones we get to see fuse,they have to go through a lot of practice to get the dance down and must have evry move and sound and even thought the same exact as the other wich makes it really hard and inspite of this hard dance trunks and goten mess up twice once turning into an old man and the next into a fat loser but finally the third they get it right and the power of of fusion is unleashed,( in my opinion i think gotenks is a loser always trying to be perfect) the next we get to see fuse is goku and vegita but this is not with the fusion dance this is with the power of the elder kaioshin ear rings, the rings behold the power of another kind of fusion and the way it works is one person must put one ring in one ear and the other person in the oposite ear this type of fusion is also used by the elder kaioshin and the old witch and by shin and the other dude
