Single ROM 32MB reflashable Gameboy Advance game cartridge (RTC + solar)

* STOCK UPDATE 11/25/25: NOW IN STOCK!

NOTICE: PLEASE READ ALL PRODUCT DETAILS CAREFULLY!  DETAILS FOR GETTING A CUSTOM ROM FLASHED TO YOUR CARTRIDGE ARE BELOW!

Load and play your own Gameboy Advance game ROMs!  This cartridge is ideal for GBA Pokemon titles, Pokemon ROM hacks, the Boktai collection (use solar functionality but requires "batteryless" save or Flash patch), some homebrew titles, and more!

Product features:

• Cartridge holds 1 Gameboy Advance game ROM at a time
• Ideal for GBA Pokemon games, Pokemon ROM hacks, "batteryless patched" and Flash patched games, and more!
• Can be used with the Joey Jr. cartridge flasher, sold HERE!
• Real-time clock (RTC) allows for time-based events in applicable games to take place (battery required and included - CR1620 Li-Ion cell)
• Cartridge has an onboard solar sensor for games with light input support
• Up to 32MB of storage for flashing a single game ROM at a time
• Utilizes 128KB Flash for save data (Flash saving support only) - No battery needed for saves!
• Compatible with original Nintendo Gameboy Advance game consoles and the Analogue Pocket FPGA console!
• (Alternate cartridge shell color options coming soon!)

NOTICES:

• Console and game ROM compatibility for this cartridge is NOT GUARANTEED!  This cartridge works with very specific game ROMs, primarily the GBA Pokemon titles, and potentially some Flash save-patched ROMs and "batteryless save" patched ROMs (I.e. homebrew patches).
• For best results (using the Joey Jr. with JoeyGUI software/firmware), flash your game ROM to the cartridge FIRST, and then your save data from another cartridge SECOND.
• To flash this cartridge yourself, purchase a Joey Jr. HERE!
• If using a Joey Jr. to flash this cartridge yourself, you MUST update your Joey Jr. to the latest firmware, found HERE!
• If you selected a "Flash my ROM (email us)" option above, please email us at support@highscoretech.com immediately after placing your order to let us know your FULL NAME and ORDER NUMBER, and to provide us your game ROM file/files (2 ROMs maximum; 4 MB max size for two, 8 MB max size for one).  THE ACTUAL GAME ROM FILE MUST BE SENT.  WE DO NOT AND CANNOT PROVIDE ROM FILES!  Thank you!