Episode 678

"The Fire Fist Strikes! The Power of the Mera Mera no Mi Returns" is the 678th episode of the One Piece anime.

Short Summary
The final Colosseum round continues as Rebecca finally remembers her father. Sabo destroys the Colosseum with his Dragon Claw Fists: Dragon's Breath before leaping at the Fighting Fish baring the Mera Mera no Mi, and claims the Devil Fruit. Gaining Ace's former fiery powers, Sabo burns a hole directly through the bottom of the Colosseum.

Down in the trade port, Hajrudin picks up the barely-conscious Usopp and presents him to all the former toys, proclaiming he is their savior. The hole created by Sabo is seen breaking on the port's ceiling as the remaining fighters fall in. As the light shines upon Usopp, the warriors believe he is a god. Asking what to do next, Usopp tells them to destroy the factory behind him.

Anime Notes

 * When Buffalo tried to attack Kyros in the manga, Kyros instantly snapped his neck and threw him out of the palace. In the anime, Kyros first held Buffalo at sword point.
 * The anime extended the scene of Rebecca remembering her father.