Comment by UFO: Challenger is a Game Boy game installer cartridge. Its function is to backup the game from the original cartridge into the Challenger. Play the Backup game which upload to the Challenger without using the original cartridge. Challenger has a capacity of 16M RAM memory which allows more than one cartridge game are installed.
1. Set the selector of Challenger to Auto position and turn the Game Boy console on, a menu is displayed on screen. There are three positions Auto, MCB1/2 and MCB5 on the cartridge. If some games may not compatible to Auto position, Challenger needs to be set to MCB1/2 or MCB5. 2. Use direction pad to select the following options Play flash game V play installed game in the Challenger Play cart game V play cartridge game Color palette V change background color and object color for black and white Game Boy games.