Arena Ferox is an arena in Fire Emblem: Awakening. Located in Regna Ferox, it is where the Khans hold fighting tournaments to determine who will be the absolute ruler of Ferox until the next tournament. It houses a large open arena with no terrain advantages or disadvantages and has a large crowd around the arena.
During the events of Chapter 4, after speaking with the East Khan, Flavia, Chrom represents her for the Khan tournament. His opponent is none other than "Marth", who represents the West Khan, Basilio. The two duel for the right of their represented Khan for their right to become the ruling Khan. "Marth" is soundly defeated and the right to power is given to Flavia. After the battle, in acknowledgement of Chrom's skills, Basilio lends his aid by giving him his previous champion, Lon'qu, to his cause.
Arena Ferox is a new stage in the 3DS version of Super Smash Bros 4. The design of the stage floor matches the original map from the game. It's basic form has four raised platforms, three of which are suspended from the ceiling by chains. The fourth is raised by a plank and cannot be passed underneath. It is also a dynamic stage, changing the platforms under currently unknown conditions.
- Arena Ferox is the only location in the entire Fire Emblem franchise to have a stage based from it in the Super Smash Bros. series. Castle Siege and Colliseum have no fixed locations associated with them.