GG Hi-Res Graphics Demo By Charles McDonald (PD) ROM Download can be obtained free for Game Gear on EmuGames.net only. Play emulator game in English for the USA region. GG Hi-Res Graphics Demo By Charles McDonald is a Gear ROM that you can download to your computer or play online within your browser. You can also download roms such as Rock Band Unplugged and BlazBlue Calamity Trigger Portable that work on all devices including desktop and mobile. Be sure to rate the game if you enjoyed playing this ROM.