Uncharted 2: Among Thieves is a 2009 action-adventure game developed by Naughty Dog and published by Sony Computer Entertainment. It is the second game in the Uncharted series and was released in October 2009. Uncharted 2 is an action-adventure platform video game played from a third-person view, with the player in control of Nathan Drake. Drake is physically adept and can jump, climb, and scale narrow ledges and wall faces to get between points. Drake can be equipped with up to two fire-arms – one single-handed and one two-handed – and a limited supply of gre-nades. Drake can pick up weap0ns, automatically replacing the existing weap0n he was using, and additional ammuniti0n from slain enemies. The player can direct Drake to take cover behind corners or low walls using either aimed or blind-fire to kill his enemies. The player can also have Drake fire while moving. If Drake is undetected by his enemies, the player can attempt to use stealth to take them out, such as by sneaking up behind them to knock them out with one hit, or by pulling an unsuspecting foe over a ledge from which Drake is hanging. In most areas, if all of the foes patrolling are killed stealthily then other waves that would normally appear do not. Some areas of the game require the player to solve puzzles with the use of Drake's journal, which provides clues to the puzzles' solutions. When enabled, a hint system provides gameplay clues, such as the direction of the next objective.