It's not long until you've got your trusty portal gun back in your hands and you're solving simple puzzles which act as the tutorial for the game. (wolfsgamingblog.com)
You and a friend (or enemy) each control a robot and your own separate portal gun, for a total of four portals at a time. (pcworld.com)
But what if Nintendo teamed up with Valve and recreated the famous Mario game with Portal gun mechanics? (stabyourself.net)