lazycoconut
I liked him when he wasn't a god
Riderman's survival was explained, though not entirely on-screen. I wouldn't say that's a continuity problem, it's more like the typical case of a popular character surviving. I see it in the same way as (SPOILER ALERT FOR GAIM): [HIDE]Takatora being dead for a while, and then at the end of the penultimate episode, we discover he had survived all along.[/HIDE] Is that a problem with continuity?
I think that's a bit different ...
[HIDE]Takatora's fate was left ambiguous, but the lack of a body and the very strong implications that Micchy's "visions" of him were hallucinations left open the possibility he had survived. It then emerged Takatora was still alive but "brain dead" and wasn't going to survive - but Kouta then revived him so that he could help Micchy. That was a pretty significant plot point and fit with what the story had given us thus far.[/HIDE]
Riderman on the other hand was clearly supposed to be dead and IMO his reappearance is more like when soap operas kill off a popular character (body identified, funeral held, the works) only to bring them back years later with some contrived retcon. The fans know it's stupid but don't care since they like the character
