The first set of additional content you can purchase via the Playstation Store. Adell and Rozalin, as well the ability to create the Nekomata/Kitcat class.
That "sword" you saw was the machange (demon change), a new ability in this game. Monsters now have the ability to change into weapons for humanoid partners, increases stats and granting new skills. The monster who was that sword was an efreet.
I want those downloads so much. I see they overpowered the kitcat, again. That one has always been overpowered in some way, but dam, now she is a killing machine. Yes, she
It's Gundam. It's G. It's over-the-top-giant-robo-fun-for-all from Japan. Of course it'd be in here. At least it makes sense now, Who ever heard of a heart shaped beam turning into a well dressed man with the best dentist ever anyways?