MasterBoy Mod PSP

MasterBoy Mod
General
Author	splitowo
Type	Handheld
Version	2.02.9
License	Mixed
Last Updated	2025/09/19
Links
Download
Website
Source

Fork of Brunni's MasterBoy with bugfixes.

It is a Game Boy, Game Boy Color, Sega Master System and Game Gear emulator for PSP.

Features

• Save states along with traditional on-cartridge saves.
• Emulation turbo mode.
• Gameshark cheats (how to).
• Screenshots.
• Rich customization settings (more details).

Installation

Extract the zip and put MasterBoy directory into /PSP/GAME. directory on a PSP Memory Stick.

ROM files can be put in /MasterBoy/Roms GBC/ and /MasterBoy/Roms SMS/, (or anywhere else)

Controls

D-Pad/Analog - Navigate through Menu

Cross - Select

Circle - Cancel

Square - Reset settings (Menu)

Triangle - Save configuration (Menu)

L - Menu

Music player:

Select - Disable

R - Switch to next track

L - Restart current track

Cross - Pause

Screenshots

Changelog

2.02.9 2025/09/19

• Fixed audio DAC bug affecting game Wing Warriors.
• Fixed graphics bug affecting game Hime's Quest.

2.02.8 2025/06/11

• Turbo mode is now complemented by slow mode - default key bind is R+triangle.
• Note: this update adds a new key bind for the slow mode. When updating from a previous version, either:
  • a) use the new DEFAULT.INI bundled with this release (this resets all MasterBoy settings to default)
  • or
  • b) keep your old DEFAULT.INI but review/reassign your shortcuts once 2.02.8 is first started

2.02.7 2025/03/08

• Fixed graphics bug which affected game NASCAR 2000.

2.02.6 2024/11/14

• Gamegenie GBC cheatcode support added.
• Emulation performance improvements.

2.02.5 2024/10/30

• Gameshark GBC cheatcode support added.
• Improvements in audio emulation (fixes audio glitches in Prince of Persia).

2.02.4 2024/08/03

• Compatibility fixes for games: Donald Duck Quack Attack, LEGO Racers, Aladdin.
• ROMs with filename exceeding 80 characters now load correctly.

2.02.3 2014/07/01

• Graphical glitches fixed in game: Shantae.

2.02.2 2024/06/25

• Compatibility fixes for games: Alleyway, Wizards & Warriors X.

2.02.1 2024/06/21

• This version builds on PSP-Archive hosted code. (https://github.com/PSP-Archive/MasterBoy)
• Game saves located in cartridge SRAM are no longer lost when MasterBoy is shut down via PSP's HOME button.
• Minor emulation efficiency/battery life gain.

External links

• GitHub - https://github.com/splitowo/MasterBoy
• Reddit - https://www.reddit.com/r/PSP/comments/1do00df/sharing_bugfixes_for_masterboy_gbc_emulator/