Competitive multiplayer is featured in the game. Players play as different characters in the series, and are tasked to defeat their opponents. Treasures can be found in all maps, which can be used to purchase items and weapons. Multiplayer features "Mysticals", supernatural power-ups that boost players' ability. For example, the "Wrath of El Dorado" damages all opponents standing next to it, while the "Cintamani Stone" can heal both players and their teammates. Sidekicks are AI-controlled companions that can be summoned to assist players. The Hunter can immobilize its closest opponent for an easy KO, the Savior can provide medical support and ammo to players, the Sniper can attack opponents through the use of sniper rifles, and the Brute can attack enemies using a heavy machine gun. Plunder mode returns, though it was scaled back to support eight players. A co-op multiplayer was added in late 2016, and according to Naughty Dog, vehicles for the competitive multiplayer modes could be introduced after the game's launch.