Game of the Year. Screenshots bluebot_drowning.jpg" blue_and_orangebot_done.jpg" laser_cube_orangebot_ass.jpg" bluebot_sneaking.jpg" Lasers.jpg" Respawn.jpg" level_select.jpg" jumpoffcliff.jpg" sp_sabotage_darkness0281.jpg" sp_sabotage_darkness0258.jpg" sp_sabotage_darkness0196.jpg" sp_colo_tbeam_paint0292.jpg" e3_paint_jump_wall_jumps0068.jpg" sp_intro_040053.jpg" sp_laser_dual_lasers0080.jpg" e3_tbeam_trust_drop0015.jpg" Portal 2  is a  puzzle game  presented from the  first-person perspective . Players act as Chell  in the single-player campaign, as one of two robots, Atlas and P-Body, in the co-operative