Saints Row 2 is an action-adventure video game set in an open world environment, offering the player a large open environment in which to move around. The player’s character is capable of maneuvering through the environment, utilizing weaponry and engaging in melee combat warfare. After successfully completing the first game mission, the player meets the Third Street Saints and begin their devious schemes with the gang. Missions are unlocked by earning ‘Respect’ points from minigames and side-missions and although completing missions is necessary for game progression, players can complete them at their own leisure. The player is granted the option of instantly retrying the missions should they fail an attempt. Numerous checkpoints save progress in each mission, and missions can be replayed from locations within the environment. Aside from attempting missions, the player can explore the environment, purchase items at shops and participate in the aforementioned mini-games and side-missions. [unreliable source?] The player can also wreak havoc upon the city of Stilwater which can provoke potentially fatal attention from authoritative forces. The player can recruit members from a friendly gang and use a mobile phone to contact friends and/or businesses, as well as to input cheat codes. Entering cheats will disable Xbox 360 achievements.