As captain of the Buggy Pirates, Buggy has authority over his crew, which grew exponentially during the Impel Down Arc after he freed hundreds of powerful prisoners from Impel Down whose individual bounties are much higher than his own. After hearing that Buggy was once a member of the Roger Pirates, these prisoners came to heavily respect him and follow him wherever he went. The EmperorWhitebeard even noted that Buggy's new forces could disrupt his crew's ability to save Portgas D. Ace if they were against him, so he offered to form an alliance with Buggy during the Summit War of Marineford. Buggy's newfound authority created by his association with the Roger Pirates even attracted the attention of the World Government, who offered him a Warlord position. Buggy used this position to run a mercenary business called Buggy's Delivery, where he had authority over a large number of powerful mercenaries including giants from Elbaf. However, now that the Seven Warlords system has been dissolved, Buggy is now an enemy of the World Government again and he can no longer operate outside the law as he pleases.
Despite once being an apprentice with the renowned Roger Pirates, Buggy has never achieved the great strength and combat skills of his crewmates, particularly his fellow former apprentice Shanks who is now a member of the Four Emperors. For the most part, he is only truly dangerous against normal citizens and novice pirates in the weakest sea East Blue, though did manage to easily defeat the Kumate Tribe with the help of Alvida, Mohji, and Cabaji. However, Buggy is resilient, having sailed the Grand Line with the Roger Pirates and surviving the battles and perils they were in, including fights against opponents like the Golden Lion Pirates and Whitebeard Pirates. Buggy has also captained his own crew through the Grand Line and has survived its perils so far, and currently operates in the New World. Buggy was involved in the mass breakout of Impel Down and the Summit War of Marineford and survived, although he was rarely involved in direct combat and most of the fighters paid him little mind.
Buggy mainly gets by with his craftiness; he frequently devises plans to unexpectedly overwhelm his opponents with his weapons and Devil Fruit. He allowed Roronoa Zoro to cut him into pieces and pretended to be dead in order to stab Zoro with a detached hand while he was off-guard. He was also able to trap Luffy on Gol D. Roger's execution platform, and would have successfully executed him had lightning not struck the platform. Buggy is also a skilled inventor, as evidenced by his creation of extremely powerful ammunition like Buggy Balls and Muggy Balls that greatly aid in his destructive capabilities. While alone on an unknown island, he made a trap to attempt to catch a large bird, but the bird was not fooled.
Additionally, Buggy is very opportunistic, and will frequently look to utilize other people to help him get out of trouble. This was most notably shown in Impel Down, where he freed hundreds of prisoners to get them to follow him and create a riot. When the Marines identified him as a former member of the Roger Pirates, Buggy decided to quickly utilize this to build up his own image. Although his efforts to be seen as great are frequently intentional, Buggy also benefited from a significant amount of luck when leading the Impel Down escapees, as even though he showed his cowardly nature multiple times, his words and actions were always misconstrued by the escapees as indicators of strength.
Buggy possesses notable physical durability, as he quickly recovered after being hit by a Muggy Ball that Dracule Mihawk rebounded back toward him in Marineford. Although he avoided most of the damage by using his men as shields, Buggy was able to survive the explosion from a Buggy Ball that Luffy sent flying back at him and emerged from the wreckage of the collapsed tavern with no injuries. Additionally, although he does not have immunity to lightning like Luffy, he was able to quickly get back up after being struck on the Loguetown execution platform and immediately start chasing after Luffy. In Impel Down, he was able to walk though the extreme heat of Level 4 and extreme cold of Level 5 without suffering significant adverse effects.
Buggy has a notable amount of physical strength, which is aided by his Devil Fruit allowing his hands to detach and fly. He was easily able to lift one of his men and Mayor Boodle off the ground by their necks with a single detached hand. Additionally, he was able to lift a massive Blugori high into the air with both of his detached hands, as well as carry Luffy and the very large fish-manJinbe in the air with just his hands holding them against his torso. He was also able to throw Mohji a great distance forward despite Mohji being slightly bigger than him. According to Shanks, Buggy was a very good swimmer, but he lost this ability after eating his Devil Fruit.
Buggy ate the Bara Bara no Mi, a Paramecia-type Devil Fruit that allows him to split his body into pieces and reassemble them at will. This power also makes him immune to slashing attacks.
With the exception of his feet, Buggy can make his disassembled body parts levitate and control them telekinetically. He can launch his body parts at high speed, allowing him to strike a distant target with strong force. He can also split his body to dodge opponents' attacks by detaching the section of his body that would have taken the attack and making it fly out of the way.
Furthermore, his body parts remain connected to each other, even when they are separated. For example, if his hand is detached, he can still control his fingers. Additionally, he can feel any pain that is inflicted on his detached pieces.
Buggy's most frequently used weapons are his knives. In addition to simply holding them, he has also put his knives between his fingers to wield them like claws. He often uses his knives in conjunction with his Devil Fruit power by flying his detached hands and trying to strike people from afar; he can also throw the knives with power and accuracy. Additionally, he possesses retractable knife blades in his shoes, and can detach his legs and spin them to strike opponents. Thus, Buggy is capable of overwhelming opponents by flying his detached blade-holding limbs at rapid speed and attacking from multiple directions at once.
He wielded a sword when attempting to behead Luffy in Loguetown.
Buggy's most prominent weapons are his Buggy Balls, which are immensely powerful cannonballs that can instantly demolish an entire row of buildings. With this ammunition, he can terrorize a village that is not well protected such as Orange Town and easily destroy it whenever he wants. Additionally, he has also fired Buggy Balls at people who come to his base to confront him or subordinates that displease him, bringing certain death upon them. However, his crewmates have shown to be able to survive after being hit.
While in Impel Down, Buggy revealed a smaller version of the Buggy Ball known as the Muggy Ball. Despite being only slightly bigger than a bullet, the Muggy Ball possesses equivalent destructive power to a Buggy Ball, and since it is so small, Buggy can carry them on his body and throw them rather than having to shoot them out of a cannon like Buggy Balls. Buggy was able to severely injure the awakened Zoan user Minotaurus by hitting him with a Muggy Ball.