Travel to the fictional world of Greene in Great Greed, a role-playing adventure for the Game Boy. Explore the lands of Greene, uncovering the secret to saving the seven nations from Biohazard Harry. Summoned by Microwave to protect Greene and defeat Bio-Haz, players battle a horde of increasingly difficult enemies with a mix of magic and physical attacks. Great Greed features random encounters, dozens of NPCs that give insight into Greene and how to reach Bio-Haz, and 5 possible endings.