From TV Animation One Piece - Yume no Luffy Kaizokudan Tanjou! (Japan)

From TV Animation One Piece - Yume no Luffy Kaizokudan Tanjou! is a Japanese Game Boy Color release based on the early days of the One Piece anime. Published by Banpresto (a company known for licensed anime games at the time) and released in 2001, this game is an action platformer that lets players control Luffy as he gathers his initial crew. It is an official licensed game, not a hack or fan translation, and was only sold in Japan.

The player takes Luffy through side-scrolling stages inspired by the East Blue arc, fighting marine soldiers and minor enemies while collecting items and power-ups. The game uses simple jump-and-attack mechanics, with Luffy's stretchy arms acting as both a weapon and a traversal tool. Between stages, there are dialogue scenes based on the anime, though all text is in Japanese.

For collectors of One Piece games or fans of licensed Game Boy Color titles, this is a neat piece of history. It captures the lighthearted tone of the early series and offers decent platforming for a handheld game of its era. Just be prepared for the language barrier if you don't read Japanese, as menus and story beats are untranslated.