One Piece and Naruto heroes rushed to challenge themselves. To show their forces – they will fight on the arena. Choose one of the conflict side and ask your mate to become your competitor. Which one of you will win? Much depends not only on your strength, but also suitably adopted strategy before the fight. Give your all and don't let anyone could knock you to the ground. Use the power that lies in you and use special attacks on opponents. Do without too much difficulty defeat anyone who throws you a challenge? Each move can be your last!