Ok. I'm stuck in a level of "spark in the void" where I'm in a room full of acid, and I have to acivate 3 portals or something, so I can go help the marrines under attck of some xeno things. There is that green frog walking in the acid, and then three to four polar bears confused come and start to shoot at me. What should I do to activate all of those 3 portals? Please help
Been stuck at Judgment Day 2, i think this is the last board. Any help killing the boss with the crystals? Thank you