The Battle Chip Gate is an accessory for the Game Boy Advance related with the MegaMan Battle Network game series. This accessory allowed players to send MegaMan special Battle Chips by inserting real-life replicas of Battle Chips from the games into the accessory. These replicas are the same as the ones used with the Advanced PET toy. This device was used extensively in the Japan-only game Rockman EXE 4.5 Real Operation.

MegaMan Battle Network | Game Boy accessories