New Game Plus is a feature that has been added to the PS4 game "Spider-Man" in a new update. This mode allows players to replay the games story from the beginning, but with access to every suit, skill, gadget, mod, and benchmark that they unlocked in a previous playthrough. However, all open-world activities will reset. Ultimate difficulty is also added in the same update, which is the hardest way to play Spider-Man. It increases enemies damage output and health while lowering Spideys. The two new Trophies added to Spider-Man are tied to these new updates, and players have to complete the game once in New Game Plus and again on Ultimate difficulty to earn the Platinum.

In summary, New Game Plus is a feature that allows players to replay the games story from the beginning with all the unlocked items from the previous playthrough, while Ultimate difficulty is the hardest way to play Spider-Man.