Game The Twin Mystery Vortex of Doom online

History of Gravity Falls: Double vortex - the mystery of death begins and you can become a member. Brother and sister Dipper and Mabel were in a mystical place, which is divided into two parallel worlds, and each of the boys were on opposite sides. To connect they need to reach each of its portal, bypassing obstacles. But you will not get to the portal, if not did not bring a half stars. It is the star - to pass their normal world.