To pass a level you have to make all the flowers bloom in their passing above, the light beam do not match the color, for this you must use the various accessories. Mirrors, prisms, filters all of these optical gadget will do a great favor, if you take a real good advantage of them. To divert or alter the light rays. Drag and drop on the grid where you want and click it to change their slope. There the main items you will encounter then get really along with them. Prisme 3 is a Skill game, available on www.flash-games.net, good luck!