2006 · 资料书（用于增强玩法的规则/选项）
Killjoy
This superhero roleplaying supplement presents a pre-generated villain for use with the second edition of Mutants & Masterminds. Once a family man and soldier, William Royce becomes Killjoy after a tragic accident, spreading terror and destruction through a carnival of carnage. The character is designed for recurring appearances or a single encounter and includes game statistics at power levels 4, 8, and 12, supporting grim, realistic, and street-level campaigns.
技能型（购买或获得技能）基于点数（分配点数以获得技能、能力等）基于属性/数值（STR、CON、PER 等）
游戏信息（人数、游戏时长、年龄、制作人员）来自 BoardGameGeek。