Ken Griffey Jr.’s Winning Run: Newly Discovered Secret Team Codes Revealed for SNES Classic

Ken Griffey Jr.’s Winning Run remains a landmark title in the Super Nintendo Entertainment System (SNES) library, blending detailed baseball simulation with a beloved Major League Baseball (MLB) star.

Originally released in 1996 and developed by Rare for the SNES in collaboration with Nintendo, the game built upon the success of its predecessor, Ken Griffey Jr.

Presents Major League Baseball, offering fans authentic MLB action on classic Nintendo hardware. Now, nearly three decades since its release, the SNES community has been reignited by the discovery of newly unearthed secret codes that allow players to access hidden teams—without the need for saved game progress or external cheat devices.

The codes were brought to light by the dedicated community member known as TakuikaNinja, and their discovery has been documented on the leading video game research site The Cutting Room Floor. Traditionally, Ken Griffey Jr.’s Winning Run required players to complete an entire MLB season to unlock special teams.

Players could then access the "Hidden Games" menu by entering a combination of A, B, X, Y, Up, Down, and Select on the title screen.

However, with these newly discovered inputs, fans can instantly play as exclusive teams by setting up a two-player or exhibition match.

On the pre-match screen displaying team logos, players must hold down either the L or R shoulder button while inputting the appropriate code for their desired team.

A unique sound effect and screen transition confirm the successful selection of a hidden roster, which can be repeated for both controllers if needed. Here are the newly unveiled codes: - Tampa Bay Devil Rays: X, X, X, Select - Arizona Diamondbacks: A, A, A, Select - Nintendo team: B, B, B, Select - Nintendo 64 (N64) team: Y, Y, Y, Select While the inclusion of the Tampa Bay Devil Rays and Arizona Diamondbacks reflects MLB’s expanding roster during the late 1990s, the Nintendo and N64 teams stand out as true Easter eggs.

The Nintendo (NOA) lineup notably features Minoru Arakawa, the former president of Nintendo of America, while the entire N64 squad comprises developers from Rareware—the studio that played a pivotal role in SNES and Nintendo 64 history. This discovery further cements Ken Griffey Jr.’s Winning Run as more than just a sports title, but a piece of gaming heritage rich with secrets and nods to its creators.

For preservationists and retro gaming enthusiasts, these codes offer new ways to revisit and celebrate one of the SNES’s most memorable experiences.

The continued passion within the SNES and Nintendo communities highlights why classics like Ken Griffey Jr.'s Winning Run endure, as both playable artifacts and sources of fresh discovery decades after release.