slightly off comment remark.
all ki attacks sometimes appear to be balls. For example: Cell's Kamehameha, (Chou Kame, as I saw it in another post. Whatever. American only here.) was a ball attack, but plainly a Kame. *You know, the one Gohan blasted back with a much weaker looking Kame* And Vegito's Big Bang *Ok, I DID watch a sub. Sue me. Better yet, don't.* against Buu had a beam attached. I think that the only distinction between the attacks is the sender's desire to control it, or if they want a beam attached, and all ki attacks are in reality balls. Another example is Goku's Kame in the Time Chamber, that Gohan sent back with his energy. It was a ball, I think. Could be wrong. Just a little thought.