Power-Ups for Non-Transformers

[Sage]

Elaborating on what HF said, yeah, when you first get KK, it'll wear down on you bad, same as when a saiyan first gets SSJ, they basically lose their minds, more or less.

Another example, when I first got SSJ, I decided Bra couldn't use it at will. Something had to trigger it; stress, a friend dying, etc.

With a bit of training (which you'd probably complete on King Kai's planet anyway) a player can effectively master KK IC and use it as they would any other powerup. Of course, if you like playing the angle of it wearing you down for longer, that's cool too, I know some players do that.