Nomura

This game destroyed me. It is so outstanding. The gameplay and story are so great because of interesting time travel system. You have 5 eras. The first era is actually the latest one, it's a wasteland, and you have to repair history to improve current time. The world (which is totally different than in the rest of the series, it's alternative history) is shaped by Sega consoles. First one is Mega Drive (Genesis), it is antiquity with greek-like architecture. Then you have Sega Saturn Era, middle ages like. All eras show the same geographical place, so it is interesting to see how things change. There are the same dungeons, but they change subtely and expand. Third era is Game Gear, it's quite modern, very industrial place with a city that is one big factory. It is my favourite era, the athmosphere and music is incredible. The Last era is Dreamcast, it is futuristic city. You start in the great library that stores the world history and you travel through time to repair it to save the world from apocalypse. You team up with goddesses known from earlier games, and personifications of Sega consoles, called Sega Hard Girls, as well as girl called Segami, who is enigmatic entity who fell from the sky. Characters are very likeable. The battle system is fast and fun. You don't have to grind much if you buy EXP DLC. The party can consist of max 4 girls, but even unused members gain equal exp. Dungeons are fun because there are coins and hidden balls to collect. You can jump, climb, crawl through holes. There are many interesting battle mechanics, like party formations, fever gauge, skills, exe drive. There are 3 possible endings: true end, normal end and bad end. True end is particulary epic and spectacular, you should see it. Overall it is the best game on Vita. I highly recommend it to any RPG or anime fan.