Gem Gem

Gem Gem on Game Boy is an adventure software released exclusively in Japan in 1991. In this software, you embody a hero who must make his way through labyrinthine environments. On your way, randomly appearing creatures try to block your way. They must be defeated by succeeding in the random rock-paper-scissors game which acts as the combat phase. Each of these three items can be upgraded by finding treasures from the corpses of fought monsters.