Krieg is a typical One Piece villain who exhibits cruel behavior through the use of an extensive arsenal of weapons and overwhelming odds. He has a history of winning and toppling any opposition that stands in his way, leading to his failed attempt to conquer the Grand Line. However, his constant victories and reliance on weapons and odds made him overconfident. Despite realizing the importance of his crew to his efforts, Krieg mistreats them and bullies them into fearing him as their captain. He often punishes those who fail or show signs of weakness with death.