Bit.Trip Runner, marketed as BIT.TRIP RUNNER, is an arcade-style rhythm game developed by Gaijin Games and published by Aksys Games for the Wii's WiiWare download service. It is the fourth game to be released in the Bit.Trip series of games, serving as the successor to Bit.Trip Beat, Bit.Trip Core and Bit.Trip Void, and as the predecessor to Bit.Trip Fate and Bit.Trip Flux.