For those who come after, it took me 7 runs to get the platinum.

One of the best turn based single player game ever made

I am a big fan of Atlus games, played every Persona and Megaten that was released. However I can´t honestly recommend Metagen V Vengance. Although far better than the Megaten V original version, it still lacks motivation, the game "open world" style is just boring and plain, the OST is lackluster just like the FX, the character designs are amazing as usual and the combat is just like previous entries, however the whole pace and exploration is just boring, several quests with back and forth but no emotion whatsoever, the decisions made ain't interesting and the game does not a good job of making you feel "there" like previous Megaten's. Its just an overal long boring experience. A 5/10