Konami's recently released Rock Revolution has flopped in the US, selling 2 copies on the Wii.
According to NPD sales data (via NeoGAF), the game hasn't performed as well as Guitar Hero or Rock Band since strumming its way to the US in October.
Rock Revolution is Konami's attempt at breaking into the console music market after having an impressive run with the arcade sensation, Guitar Freaks. Less than 3,000 copies sold across the entire US, breaking down to 1,442 Xbox 360 copies, 816 PS3, 666 DS and an abysmal 2 copies on the Wii.
Activision's Guitar Hero World Tour did far better, with 191,049 Xbox 360 units, 182,845 for Wii, 96,657 PS3 and 63,462 PS2 versions.