That's why Goku's Kamehemaha is powerful.
And causes more damage.
They could make the Dragon model first with some sort of see-through Aura texture that the people use when pressing the boost button.
And in later releases, if they got some time they should make a skin for it.
And the Dragon fist should take 1/2 of your energy and when you hit the enemy, they will lose about 4/3 of their health.
A message to the people that may add a comment of;
"That makes the attack/Goku too powerful"
Well, tough luck for the dumb ass that gets hit by the Dragon fist, period.