One-Hit Heroes: Doggo Companion Pack

DO66-0 is your mechanical canine companion, ready to help you by granting powerful upgrades. DO66-0 comes equipped with 3 playable game modes: Solo Mode Play as one Hero with DO66-0 at your side! Beginner Mode Play as DO66-0 and join other Heros. Boost Mode Play without DO66-0, but gain its upgrades to help with tough boss fights. —description from the publisher