This is a modified version of Andy West's project from element14 Presents episode 531: "Game Guy - The Unportable Game Boy".

Notable changes:

• Single Pico!
• Using RGB222 Video to free up GPIO (with the limited color schemes, I doubt anyone would notice!)
• All pins have been remapped; this was done mostly to make things easier to route PCB traces
• 3x scale maintaining aspect ratio
• Option to enable scanlines, pixel effect, etc.
• The Color scheme, border, effects can be changed via a menu overlay
• MODEL_B version fits inside a NESPi case, with SGB Cart rev, the cartridge fits all the way in
• Custom PCBs
• With MODEL_B PCB, you won't need a functioning Gameboy motherboard. You just need a good CPU and RAM (you could even use CPU/RAM from a Super Gameboy SNES/Famicom cartridge)

Video sample

OSD

Andy liked my modifications and made an updated video where he built one with my changes :)

Check out Andy's original video!

element14 Community pages:

• https://community.element14.com/challenges-projects/element14-presents/project-videos/w/documents/27407
• https://community.element14.com/w/documents/27862/episode-577-the-game-guy-mini-upgrading-the-unportable-game-boy