G-pad, GBA4iOS: This sleeve turns your iPhone into a GameBoy. But there's a catch.
Picked this up recently, a Super Famicom Super Game Boy specialty controller : r/snes
This cart turns any Game Boy into a wireless game controller - Liliputing
SmartBoy Mobile Device for Game Boy/ Game Boy Color (Android USB Type-C Version) - Hyperkin
Game Boy Player - Wikipedia
Custom Joy-Cons “Game Boy” Mod - Nintendo Switch Retro Gaming Controll – GameTraderZero
This Device Lets You Use Your Game Boy Advance as a Bluetooth Controller - Hackster.io
HISPEEDIDO USB Type C GBA wired wireless Controller Portable Station Dock For Game Boy Advance Console GBA Switch Station Stand| | - AliExpress
Wireless Gameboy Controller Device from insideGadgets on Tindie
Digital Controller compatible with GameCube & Game boy Player (Old Skool) - Stone Age Gamer
Old Skool Digital Controller for GameCube & Game Boy Player - Purple *OPEN BOX* 645871908002 | eBay
Retro-Bit Gaming Reveals A Game Boy Player-Inspired GameCube Controller | Nintendo Life
Hyperkin SmartBoy Mobile GameBoy Controller for Androird USB Type C SmartPhone 813048018766 | eBay
Amazon.com: Old Skool DIGITAL CONTROLLER COMPATIBLE WITH GAMECUBE & GAMEBOY PLAYER -,Black : Video Games
Hyperkin Retron Sq Review - IGN
Super Game Boy Commander - Hori's Ultimate SGB Controller - PugHoofGaming
Set of retro video game consoles. Tamagotchi, gamepad, gameboy, controller. Simple, cartoonish style. Elements for design and illustrations. Bright colors. Stock Vector | Adobe Stock
Super Gameboy Commander for Super Famicom
Gameboy DMG USB controller – Facelesstech
Game Boy Controller v1.1 PCB for Game Boy Zero / 3 - tinkerBOY
