Ok, I thought it was just me but it isn't, there are definitely some missing requirements for quests (probably because of release order). For example Hell sees burger for the first time on the Emiko festival event but it's possible to get her cooking one before it. Tho it's more of a polish thing.
Ok, two more things. 1) there's a possibility that some events with Micosh's fighting costume are available before getting it (tho that might be a corrupted save thing or smth, I started new game but some things are already bought). 2) third event in twilight alliance. There were transformations (main quest ones) 1) on hidden counsel meeting, 2) Hell fight in dojo, 3) 2nd event in twilight alliance and 4) 3rd event same, and additional 1) Shella last available event and maybe 2) last Neon quest event (here I don't remember). So at the very least there were 4 transformations, definitely possible 5 and probably possible 6, and not 3 as it states in-game.