Overwatch distributes players to two teams of six players, each player choosing one character from a list of predefined characters called "heroes". Each hero has a unique style of play. Players' roles are divided into four categories: Offensive, Defensive Defense, Armored Tank, and Support Support. Team members work together to secure and defend control points on a map or accompany a load across the map over a limited period of time. Players earn cosmetic rewards that do not affect the course of the game, such as Skins and Victory Poses. The game was initially released in the form of transient and competitive game titles and different Arcade arcade phases.