[DrillBIT]

Reading up material from the official site.

My impression is Whatever happened in S-1 was simply things got dreamed up by Akagi. The images of the Akibaranger suits are simply made up by Akagi's delusion. MMZ really does nothing at all. All events didn't really happened. Hakase, Aoyaki, Yumeria, etc. are all fictional characters.
S-2 is a by-product of both Akagi and General Tsuu's delusion. General Tsuu's interference cuts in right before the "change of course", resulting the clash between 2 major tokusatsu otaku's dream (Sentai Otaku vs Sentai Kaijin Otaku), and the change of position for all sub-characters.