To complete these puzzles, all you have to is understand how a portal affects forward momentum, or to be more precise, how it does not. It is just you and a portal gun. No fancy, wacky, fiddly, gaudy, far-out or convoluted testing elements. The previous co

10 maps. 0 buttons, 0 cubes, 0 turrets, 0 bridges, 0 funnels, 0 lasers, 0 faithplates, 0 stairs and 0 platforms. No gel, no glass, no grating and no water. Just you and a portal gun. As well as distance, height, momentum and visibility. And a large number