One Piece Episode 685 English Subbed Episode Title:Steady Progress! Luffy's Army vs. Pica!.Episode Description:After Pica's arm was destroyed by Chinjao and Elizabello II, the Colosseum fighters proceed to decimate the Doflamingo soldiers. However, Pica attacked again with his remaining arm, throwing the fighters in disarray. The Colosseum fighters then noticed that Luffy is missing and one of them sees Luffy riding Ucy the Bull while climbing the colossal arm toward the giant's head. Pica noticed this and grew his arm back, before going to strike his attacker, but Luffy was ready and breaks the giant's head off with a Grizzly Magnum. Meanwhile, Robin's group reaches the top of the plaza and manages to elude their pursuers. Pica is then revealed to be controlling the colossus from within. He prepares to cut Luffy down with a huge sword, but Zoro intercepts it and stays behind to duel Pica while Luffy races toward Doflamingo's palace.