Sonic adventure 2 Knuckles Animated Recap Recap theme is started: Im Knuckles The Echidna. But you can Call Me Knuckles. My radar Locates 3 master Emeralds pieces on Green hill Zone From Dengeki Bunko: Climax Ingition is a Huge place With Rings Around Here! but i Know about these Girls Fighters can proably can helps during the Search Theres no time to Waste the Time I need to Find the Master Emeralds Now! Sonic adventure 2 Extra Stage Green Hill Zone Find 3 pieces of the Master Emerald! Knuckles appears on Green hill Zone from Dengeki Bunko:Fighting Climax Ingition