This is incredibly impressive. Whoever that fan is must have a job in the industry.
That show is terrific btw. Kind binging it after you recommended it. Animal Soldiers!!as much as i like one punch man, most of the humor is pretty classic in term of a shonen parody imo... i don't say it didn't make me laugh, but i've seen way better in that category
if you want something comical with the same kind of setting, i really recommend you Tentai Senshi Sunred, full on sentai parody mostly based on humor rather than action, it's all on youtube (but i'm sure you can find a better quality one) and it's only 10 minute an episode :
and even then, it's only speaking of super hero parody... there's even more if you expend the genres