Robot

Robots are artificial humanoid soldiers developed by Isaac which follow his command, serving the interests of himself and the Marine occupation on Jail Island. They serve as antagonists in the video game One Piece: World Seeker.

Appearance
The robots are proportioned like average-sized humanoids. Much of their bodies are covered in silver armor plates, with their joints and body underneath being black. Their heads are rectangular-shaped and possess a thin vertical opening in the front that presumably serves as their eye.

Abilities and Powers
The robots are highly advanced fighting machines with extremely powerful weaponry at their disposal. No regular citizen of Jail Island has been shown with the capability of fighting on par with them, and they are strong enough to even challenge a pirate as powerful as Monkey D. Luffy, being capable of taking multiple Gear 3 blows from him before falling.

The robots possess rocket jets right below their knees, giving them the ability to fly. This makes them capable of aerial combat, and they will also frequently fly when attacking people on the ground, making it even more difficult for them to take damage. With the aid of their jets, the robots can also careen into the ground and perform a powerful stomp on their opponent.

Each robot has a Gatling gun attached to their left forearm, allowing them to riddle targets with lots of bullets. On their right forearm, they can generate and throw bombs on the ground that will detonate in small explosions after a few seconds.

One Piece: World Seeker
The robots were first seen attacking the Thousand Sunny while the Straw Hat Pirates were off infiltrating the Sky Prison. Usopp, Franky, and Trafalgar Law fended them off, though they still inflicted damage to the ship. Later, when dueling with Roronoa Zoro at the Prison Tower, Isaac summoned some robots to keep the pirate from pursuing him as he departed. Isaac referred to the robots' arrival as a "test run", seemingly indicating that they are new developments. Zoro and his captain, Monkey D. Luffy, were eventually able to defeat the robots.

That same day, a small platoon of robots attacked Sogyoku Town. Luffy put a stop to them, and Isaac himself arrived to oversee the aftermath. He claimed that another group had stolen the robots, but this would turn out to be a lie. Luffy would later encounter another group of robots on the beach near Sogyoku Town, and had to save the civilians Raymon, Theo, and Yuri from them.

When a civil war started breaking out among the islanders and Jeanne tried gathering all of them at Konko Plaza to find a peaceful solution, Isaac summoned robots to unleash violence as part of his plot to start chaos on the island. He then put a robot suit around Jeanne, forcing his sister to start the violence and summon infinite amounts of robots so long as her suit remained intact. Luffy managed to destroy Jeanne's robot suit soon afterwards, and she and the Straw Hats were then tasked with putting a stop to robot attacks all across the island. Upon doing so, they prepared to blast Luffy and Jeanne up to the Sky Prison to confront Isaac. Some more robots flew in to try to stop them, but were taken out by Zoro and Usopp. Isaac's plot would come to fail, and it is unknown what became of the robots afterward.