Taikan Kakutou One Piece Punch Battle: Kaizokuou ni Kimi ga Naru!

Taikan Kakutou One Piece Punch Battle: Kaizokuou ni Kimi ga Naru!
Developer: Yoshidayama Workshop Publisher: Bandai Platforms: Plug & Play (SSD XaviX 2000) Released in JP: October 2004 This game has debugging material.

Taikan Kakutou One Piece Punch Battle: Kaizokuou ni Kimi ga Naru! is a Plug & Play game based on the One Piece series. It's admittedly a mediocre minigame collection that covers every arc at the time, right up to the Skypiea Arc.

Internal RAM Test

To load this screen, the second and third buttons (inputs 0x04 and 0x08) in IN0 must be active during a reset (true button assignments are unknown). Afterwards, turn them off in any order. The game will then redirect to a test screen.

(Source: tikal.)