Green Dragon is a second chest keeper boss in Malgar Realm.
Asian green dragon, it has beak and ears that look like neck frill. He is next after Cat Warrior by level and location. There are other dragons for example: Dragon. It is possible that the wizard of Malgar Realm tamed the beast to guard chest from Bob.
After defeating the boss, you will receive a 
Blue Chest as a reward. The Green Dragon may be defeated only once per timeline.
Achievements[]
After defeating the Green Dragon for the first time, you will receive an achievement "Clear Area VI" which multiplies non-tap monsters' DPS by 1.02.