Wild Zero is nothing shy of a masterpiece. When I watch TV in Japan, I sometimes catch the guy that played Ace on some sit-com and he's got the same hair!
I've seen Guitar Wolf about 3 times in Japan and the best was a "secret show" at Heavy Sick, a small bar RnR cub where I'm now doing shows. It was cool because there was no audience participation human pyramid gimmicks, which can be huge fun, but are not a big draw for me. They played first and just ripped through a set and that was it.
Unfortunately, I never got the chance to see the original band, RIP Bass Wolf. They do a tribute show to him every year in Yokohama which I have a feeling might be coming up soon.
Hope everyone that can get out to these shows has a blast ! AOOOOooooooooooowwww!!!!!!!