While initially a major part of the series, Dragon Ball Super has further proven that power levels have never mattered in the series.

Since this technique is fairly new, it might take a lot of time for Luffy to master them before he can actually beat his son ...

The young warrior Son Ogong (Son Goku) goes on a outrageous quest to acquire seven magical orbs, along the way beating up evil persons who want to steal the orbs for their own ends.