High Max is a villain that appeared in Mega Man X6,he was created by Gate, using the DNA of Zero which he obtained by analyzing his fragment. High Max was created to lead the Nightmare Investigators, old Reploids created by gate who were deactivated and resurrected to investigate the areas affected by the Nightmare Phenomenon, altough their true purpose was to attract weak reploids into certain death. X, after defeating a huge Mechaniloid who went Maverick at the crash site of the Eurasia Space Colony, faces High Max for the first time. Although X was no match for him, High Max simple dismisses him. After defeating the Zero Nightmare and reuniting with the true Zero, X fights High Max again, but this time he manages to defeat him. X makes his way into Gate's laboratory, and once again fights High Max, and this time he is definitely destroyed.
High Max is completely arrogant, thinking himself to be superior to everyone because of his strength.