Chain of Memories may be a combination of purpose playing and collectible pc cards. The game comes with an EXP program that raises the stats of the identity, and it also includes a room activity mechanism that opens upon having collected every one of the Map pc cards (which you get after you have atari emulator roms won a room). There are several types of pc cards, each with a different effect, and you can combine all of them to create one room.
Chain of Memories exists for the Gameboy Progress (GBA) and is played via...