User blog comment:IamJakuhoRaikoben/Chapter 475: Dimaria Chronos Yesta, Review./@comment-5894890-20160229190749/@comment-6401212-20160301042735

@Anon His powerup was basically him progressively getting angrier and then somehow sacrificing all of his nen to progress instantly into his future self's full potential form. Now, it's been a while since I read Hiatus x Hiatus, so please inform me of details I may have missed.

The other reason it was bullshit was because how it ended. I had a feeling Togashi meant to end the series there with Gon's death but of course that didn't happen. Fuking Killua gets Alluka and magically Gon's healed like nothing happened.