Martin Li, also known as Mister Negative, is ultimately arrested in Spider-Man PS4 after his plans are thwarted by Spider-Man.
In the game, Martin Li is introduced as the benevolent founder of the F.E.A.S.T. shelters, but it’s later revealed that he harbors a dark alter-ego known as Mister Negative. Li’s backstory involves an Oscorp experiment gone wrong, which resulted in the death of his parents and gave him his powers. Fueled by a desire for revenge against Norman Osborn, the head of Oscorp, Li uses his powers to control the Inner Demons gang and to manipulate others through his negative energy.
Throughout the game, Spider-Man encounters Mister Negative and his Inner Demons on several occasions. Li’s ultimate plan involves exposing the city to a bioweapon called Devil’s Breath, which was inadvertently created by Oscorp while trying to cure genetic diseases. Li intends to use Devil’s Breath to kill Osborn and anyone associated with him.
Spider-Man, with the help of Dr. Otto Octavius, Mary Jane Watson, and Miles Morales, manages to foil Li’s plans. After intense battles and a series of events that lead to the cure for Devil’s Breath being distributed, Spider-Man finally confronts Mister Negative in a climactic battle. Despite Li’s formidable powers, Spider-Man is able to defeat him, and Li is taken into custody by the authorities. His arrest marks the end of his reign of terror over New York City, although the consequences of his actions continue to affect the characters and the city even after his defeat.