Strengths: Walker has the strengths and weaknesses of the average Demon. Walker's most dangerous weapon is his own body. Even at the beginning of his appearance, he was able to punch his way through concrete and trees without very much effort. He is also a skilled swordsman. Walker can fly with great ease and seems to have maintained a great level of maneuverability, able to fight in mid-flight. He also possesses great strength and has mastered several fighting skills. Walker may not have as much skill as Joesph, but he makes up for this in strength. His strength, though ill-defined, is far beyond that of normal Demons. He is stronger and has more stamina/endurance than Joesph, and this is demonstrated in the style of his techniques. He lifts and breaks large objects very easily, destroys concrete without even blinking, burrows through solid earth, and is more than a match for anyone or anything twice his size. A single punch is all it usually takes him to defeat the martial artists (and wild boars) that he encounters. Walker also possesses a wealth of projectile weapons (bandannas and umbrella) which can be easily manipulated to his advantage in a fight. He also has shown a propensity to taking damage, being able to take large amounts of it and still keep fighting. In addition to this, he has incredible endurance as a result of his Bakusai Tenketsu training. Though much of this comes from the side effect of training to do the Bakusai Tenketsu, Walker still has a strong constitution when it comes to fighting. His determination, usually summoned when trying to win the love of Abby, has helped him on several occasions. A couple of hits from a strong martial artist like Walker could probably end a match very quickly.

Weaknesses: Walker's story is ongoing and has yet to reveal any weaknesses. Nonetheless, Walker is not indestructible. He has all the vulnerabilities of a typical Demon  and decapitation will instantly kill him. In addition, certain objects of religious significance to Christians -- specifically Bibles, crucifixes, and holy water -- can burn his flesh. His determination can sometimes be more of a disadvantage to him than an advantage. He has, on several occasions, shown that he can be easily blinded by his anger. He is also an emotional fighter, and this can either be a strength or a weakness for him, depending on the situation. Emotional feelings during a fight can either increase Walker's strength or cause him to become sloppy and attack blindly (the latter is more the case than the former). Walker's horrible sense of direction may also cause him to lose his opponent. He also tends to have a "berserker" type of fighting style - not fighting very carefully and attacking more than defending. He is a fairly gullible person, and he can be tricked with simple distraction techniques. Also, when he learns a new technique he tends to rely upon it to a fault, and tends to rely on a newly-learned technique by itself to win sometimes, as he did when using the Bakusai Tenketsu and the perfect Shishi Houkoudan. In his cursed girl form, his speed is said to increase to even greater levels than it usually is, but his strength drops as well. Walker's girl-form is weaker than his male form, but his girl-form is faster. Although he has trained his girl side, most of the time he isn't able to exploit the greater speed he has, and forgets that he isn't as strong. His cursed form is still human, however, so he can still fight, whereas others like Rahan or Hannah would be at a severe disadvantage.