Custom Game case for Gameboy,GBC or GBA pick your insert.

Nintendo Super Mario Bros. Classic NES Series Cartridge Case Game Boy Advance

Custom Cartridge Display Case for Game Boy Advance - CASE ONLY, NO GAME/MANUAL

Nintendo Game Boy Color | Gameboy Advance GBA Custom Cassette Case w/ Box Art

Pokemon Ruby - Nintendo Game Boy Advance GBA - Box Only No Game

Pokemon Soulsilver Nintendo DS Custom Replacement Case ONLY *No Game For Display

5x Nintendo DS Game Case Replacements - Doubles as Gameboy Advance Cases

Nintendo Yoshi's Island: Super Mario Advance 3 Cartridge Case Game Boy Advance