One Piece Episode 678 English Subbed Episode Title:The Fire Fist Strikes! The Flare-Flare Fruit Power Returns!.Episode Description:The final Colosseum round continues as Rebecca finally remembers her father. Lucy destroys the Colosseum with his Dragon Claw Fists: Dragon's Breath before leaping at the Fighting Fish baring the Flame-Flame Fruit and claims it. Gaining Ace's former powers, he takes off his disguise and Diamante recognizes him as a revolutionary, who then uses Ace's Fire Fist technique to burn 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 Lucy 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.