One Piecehas been going strong since 1997, and, unsurprisingly, One Piece games have been around for nearly the same amount of time. The anime series, which started in 1999, has produced well over a thousand episodes and, again, is still going strong. Even if it took longer to cross over to Western countries than the other "big" battle shonen properties, One Piece is arguably untouchable when it comes to worldwide appeal, with only Dragon Ball exceeding it.