One Piece - Going Baseball - Haejeok Yaku (Korea)
GBA

One Piece - Going Baseball - Haejeok Yaku (Korea)

One Piece - Going Baseball - Haejeok Yaku is the official Korean regional release of the unique One Piece sports spin-off developed and published by Bandai for the Game Boy Advance in 2004. Based on Eiichiro Oda’s globally beloved One Piece manga and anime series, this game trades the franchise’s typical pirate action and fighting gameplay for lighthearted, chaotic baseball that leans heavily into the series’ signature silly humor and character-driven charm. Unlike traditional baseball sims, Going Baseball lets players lead the entire Straw Hat Pirates crew, with every character’s in-game stats directly tied to their canon abilities from the series: protagonist Monkey D. Luffy boasts incredible batting power thanks to his stretchy rubber body, Nami has top-tier base running speed, Usopp offers precise pitching control, and Roronoa Zoro is a reliable consistent contact hitter. The Korean localization was built specifically for the South Korean GBA market, with fully translated menus, st

No download required
Save states supported
Works on mobile & desktop

The emulator loads after you press Start Game.

How to Play One Piece - Going Baseball - Haejeok Yaku (Korea)

Move
WASD
ABAction
JK
XYShoulder
L;
STStart/Select
21

Save & Load States

  • F2Press F2 to save your current game state at any time.
  • F4Press F4 to load your last saved state.
  • F3Use F3 to switch between save slots.

Save states are stored locally in your browser. They persist across sessions but are cleared if you clear browser data.

Customize Controls

Click the gear icon on the emulator toolbar → "Controls" to remap keys.

Move
WASD
Action
JK|L;
System
2 Start1 Select
Save
F2SaveF4LoadF3Slot

Default layout for GBA. Remap in emulator settings.

About One Piece - Going Baseball - Haejeok Yaku (Korea)

One Piece - Going Baseball - Haejeok Yaku (Korea) is a classic GBA game you can play online for free in your browser. No download or installation is required — click "Play Now" to start instantly. Relive the experience of vintage console gaming with authentic gameplay, right in your browser on any device.

This title is part of the PLAYERETRO game collection, which features over 1000 classic titles across multiple systems. Use the keyboard controls shown above to move and interact. Save your progress with save states and enjoy One Piece - Going Baseball - Haejeok Yaku (Korea) anytime, anywhere.

Play One Piece - Going Baseball - Haejeok Yaku (Korea), the 2004 One Piece sports spin-off for GBA, online at PLAYERETRO. Enjoy this unique retro baseball game featuring your favorite Straw Hat Pirate

Game Guide

Whether you’re a casual One Piece fan discovering this game for the first time or a retro baseball veteran, these tips will help you dominate the diamond in One Piece - Going Baseball - Haejeok Yaku. Start by building a strong early-game team composition when you first unlock the main story mode: place Luffy in your clean-up batter spot, as his 9/10 power stat makes him the most reliable early-game hitter for home runs, which is critical for beating tougher rival crews early on. Put Usopp in your starting pitcher rotation, as his high control stat makes it easy to place pitches outside of enemy batters’ reach, lowering their chance of getting solid contact. Reserve Nami for base running situations, since her 10/10 speed stat makes her the best early-game character for stealing bases. When batting, wait to swing until the pitch enters the red target zone on your batting cursor. Many new players swing too early, especially against faster pitches from top enemy pitchers like Arlong and Crocodile. If a pitch lands outside the strike zone, don’t be afraid to take a ball, as working the count is far more effective than swinging at bad pitches that result in easy outs. For pitching, mix up your pitch types to keep enemy batters off balance. Don’t just throw fastballs every turn: use curveballs and sinkers on 2-0 or 3-1 counts to catch batters off guard. Every pitcher has a unique special pitch that is much harder to hit, so save this special move for full count situations against the enemy team’s best batter when an out is critical. To unlock hidden characters, complete the main story mode first, then beat the East Blue Challenge mini-tournament to unlock Shanks, who boasts a higher power stat than Luffy. Finish the full Grand Prix mode to unlock Portgas D. Ace, one of the best all-around players in the entire game. Remember that this Korean release has slightly tuned-down difficulty compared to the original Japanese version, so new players can comfortably start on normal