still not perfect but close still afew Fixes like loading in air and etc.
and make the wave less spamming i think i will try with make a animation from fire kamehameha pose(ground and air) to wait/fall so it takes something like 20 frames to get out of that attack to you can do something else
also look GFX at hands i was trying to make it so it looks like the wave stay at the hands

all i just needing now is:
make goku stay still then fire kamehameha in Air
slowfall if loading in air
so is N-B almost done
