Joystiq - Giana Sisters: Twisted Dreams is older than I am. Ancestrally, at least – The Great Giana Sisters launched in 1987 on Commodore 64, Atari ST, the Amiga and a few other, old platforms. The publisher, Rainbow Arts, was immediately embroiled in scandal for the game's similarity to Super Mario Bros. It was pulled from retail and eventually the IP shifted to Spellbound Entertainment, which released Great Giana Sisters DS in 2009. Spellbound went bankrupt in 2012 and many of its members re-formed as Black Forest Games with the Giana Sisters IP in hand.