Games that are designed specifically for the Game Boy Color are housed in clear-colored cartridges, and will not function in an earlier Game Boy or the Super Game Boy (or will simply display a warning message and refuse to play).
Games are housed in clear-colored cartridges. These Games are designed specifically for the Game Boy Color. Games will not function in an earlier Game Boy (or will simply display a warning message and refuse to play). Games will not function in the Super Game Boy (or will simply display a warning message and refuse to play). These Games are designed specifically for the Game Boy Color.