In Dudes Battlegrounds, Chopper is one of the unlockable fighters that can be accessed for free. You can get him by completing a quest given by an NPC marked with the same name in the lobby.

There are several good Roblox games for fans of the anime/manga series One Piece, but they have certain ups and downs.

A One Piece Game follows a less-traditional path than most games, where the game cares more about how much time you spend grinding in the game than just completing quests.