Maxima is very serious about duty and business. He is a very honorable man who suffered greatly when Rocky died. He sees K’ as a new Rocky and calls him “Aibou” (“Partner”). He usually has to apologize for his partner’s rudeness with a humble attitude. His mellow nature seems to belie his age, as several characters mistake him for being a few years older than he really is.
The Type-M fighting style probably created for (or by) Maxima focuses on striking, grappling and the use of Maxima’s weapons. Most of his attacks have autoguard, making Maxima capable of blocking when attacking. His style employs a combination of striking combinations and grappling. Some of his moves seem to be inspired by pro wrestling, with him being able to do a dropkick, a Mongolian chop, a bear hug/suplex combination and a somersault senton.
Maxima also has an array of built-in weapons, which he uses to increase his fighting ability. His main weapon is the M-4 Vapor Cannon, a steam-powered impact cannon which is designed to deliver powerful punches that can send an unprepared opponent flying. The Vapor Cannon may also negate projectiles thrown at Maxima. A variation of the cannon is the M19 Blitz Cannon, which Maxima uses as an anti-air move. He jumps (with or without his jets) towards an airborne opponent, places his right arm on the enemy and activates his arm cannon, which sends the opponent flying to the ground. Maxima also has a pair of built-in jets on his feet, which he can use to quickly move forward in a line, or to jump.
Maxima uses his feet propulsions and his body weight to great impact to create the Bunker Buster move. He propels himself upward and falls on his enemy, which creates a severe shockwave, capable of sending nearby, unprepared opponents flying skyward. His Maxima Revenger move, consists of him grabbing his opponent, hitting him with a knee and throwing him into the air. When he falls, Maxima concentrates all his strength in his head, and headbutts him once or repeatedly.
One of Maxima’s strongest weapons is the MX-II Final Cannon. The MX-II is a powerful energy gun originally capable of firing a big projectile of raw energy. Maxima has modified the cannon to create the MX-IIb version, that instead fires a potent laser beam. Maxima also has a built-in energy cannon on his chest, which is directly powered by the small-sized nuclear reactor inside him. This chest cannon is probably Maxima’s greatest weapon and strongest attack. With it, Maxima was, in the past, able to fire a short ranged, but powerful beam of pure energy. Now, Maxima’s chest cannon has increased in power tremendously. He is now able to use it to fire a gigantic blue energy beam, capable of leveling buildings and his opponents alike.