King of the Arena is essentially a giant battle on top of a raised podium. You and your opponent are not fighting each other but a never ending group of Roman soldiers. The goal is to accumulate more points than your opponent. Each hit you land on a Roman gives you points, special moves give you more points, but be careful not to use your charging attack () near the edge of the podium as you can fall off, which will cause you to lose the match.
Occasionally a target will pop up on the edge of the podium. If you grab a stunned Roman (), spin him () and throw him in there ( again) you get even more points.
Whoever has more points at the end of the timed match wins.
This achievement can only be done in Olympic Mode.