"By and large, the gameplay in God Eater 2 is fairly tactical, in that you have to focus more on dodging the Aragami enemies’ attacks while hunting them, as they can down your player character with just a couple of hits.
God Eater 2: Rage Burst changes things up a little with a new power-up mode, the Rage Burst mechanic, that temporarily grants you a massive damage boost as well as faster rapid strikes and increased movement options. It’s a little like the Musou system in Dynasty Warriors games, and while Rage Burst is active you could basically go wild on the Aragami without worrying about their attacks as much. But in order to keep the game balanced, you won’t be able to activate the power-up all the time (unless you’re playing the TGS demo). Rage Burst activation is something you’ll have to earn. "