Bit.Trip Flux, marketed as BIT.TRIP FLUX, is an arcade-style rhythm game developed by Gaijin Games (now Choice Provisions) and published by Aksys Games (WiiWare version) and QubicGames (Nintendo Switch version) as the sixth and final game of the main Bit.Trip series. It was released for the Wii's WiiWare download service on February 25, 2011, which was later ported to Microsoft Windows and OS X. It was released on the Steam platform on June 5, 2014, and was ported to the PlayStation 4 and Nintendo 3DS as part of a collection later on. A standalone version was released on Nintendo Switch on December 25, 2020. Gameplay Bit.Trip Flux plays very similarly to that of the first game in the Bit.Trip series, Bit.Trip Beat. The player must hold the Wii Remote in a sideways position and rotate it towards or away from the screen, or move the mouse forwards and backwards on the Windows and OS X versions, to cause the paddle on-screen to move up or down in an attempt to reflect beats (square blocks moving towards the player's side of the screen). Different types of beats will move from the left side of the screen towards the right. The player must reflect all of them (except for bonus beats and avoid blobs). As the player successfully reflects beats, a bar at the top of the screen will start to fill. When it does, the graphics will change and the player will mode-up to a higher mode and earn more points for each beat. If the player fails to reflect a beat, a bar at the bottom of the screen will start to fill. When it does, the graphics will change and the player will mode-down to a lower mode and earn less points for each beat. Should the player mode-down to the lowest mode, the Nether mode, they must mode-up or they will be sent to the beginning of the last checkpoint. There are 3 main levels to the game: Epiphany, Perception, and Catharsis. At the start, the player can only choose the Epiphany level, and must beat it to unlock Perception. After beating Perception, the player will unlock Catharsis. Each main level is divided into smaller levels that have checkpoints after completing each one. These checkpoints, however, can only be reached in the same play session. If the player quits the game, they will have to start at the