Originally Posted by
abmccray
Drunkard,
I can't check the specifics right now, but Piccolo's Demon Wave attack (open palm out) is the equivalent to Roshi's Turtle Wave (Kamehameha), both of which can be done with slight variations. I thought it was the island buster offhand, but Hazard posted exacts.
I was thinking of anime when I stated minutes of charge time, but it's still much longer than anything people are doing in an actual fight. First Roshi has to bulk up, then he does a longer kamehameha motion than any others done. Then it expels all of the energy gained when bulking up and he's completely drained. The important thing to note with timing is that everyone around him can see the power up phase, meaning it takes a great deal longer than the instant-kamehamehas everyone else is usin mid fight.