Character specific trophy. The character you'll be choosing this time is Akifusa (blonde guy with the spear). This can be won in any mode aside from singleplayer. That said, you can earn this in local versus against a second controller.
Now, your first step of action is going to be to start up a match and destroy all of the floating stones on the map. You'll know you have done this when your character begins to flash and their image appears on the screen breifly. Now, your meter regenerates stupidly fast. Once you've earned half a bar, you can then press
to use his "super" which enters him in to an enhanced state. You'll see a small red meter begin to deplete above the super meter. Once this nears empty, simply use the super again and wait. If you've destroyed all of the stones, you should have enough meter to use the move again immediately after it expires. Simply keep repeating this process until you've accumulated 10 minutes of time in this state.