: One night, a portal opens and Giana’s sister, Maria, is sucked into the Dream World and devoured by the dragon Gurglewocky .
: Exists in a bright, lollipop-filled dreamscape that annoys her, fueling her aggressive dash-and-smash abilities.
There is no permanent "free" full version of the game. It is a commercial product available on major digital storefronts: Giana Sisters: Twisted Dreams - GOG.com