Kaio-Ken Powerup

I was thinking about this, it would be really kool to add a kaio-ken powerup type of transformation to goku. a nice bright red aura and then he multiplies his power. would be handy to have in powerstruggles and technicially it would be correct for him to use kaio-ken before he becomes a super saiyan. anyways just thought I'd mention that, as it wouldn't seem like too much work to add a red aura and boost the power level.

I'd really like to see Kaio-Ken in the game, but it would have to have a really large disadvantage (constant drain on health, reduced gain for kills) for it to be put in. Other wise Goku could rule in the early parts of the matches when no one could transform.