VVVVVV is a 2D platform game created by Terry Cavanagh. The game was released on Microsoft Windows, Mac OS X, and Linux in 2010. The game has a retro-style, 8-bit graphics and music, and is focused on exploration, puzzle-solving and platforming. Players control the main character, Captain Viridian, as he navigates an interdimensional world in an attempt to save his crew. The game has no weapons and instead requires the player to use the main character's ability to reverse the direction of gravity to solve puzzles, avoid enemies, and progress through the game. VVVVVV features a number of unique game mechanics, such as the ability to flip gravity, and is considered to be one of the most challenging platform games of its time. The game also features an array of levels, each of which features unique puzzles and enemies. Additionally, the game includes several unlockable "challenge" modes, in which the player must complete a specific task or set of tasks under a time limit.
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