want to increase the size of only 1 or 2 pages and not whole website

hi,

i have a website named gamearics.com, it has a sidebar on right and footer…i have made all my pages with it …but now i want 2 pages for a big game such as angry birds which does not fit in content area …hence i want to make that page big so that user can see full angry bird game ..i will remove sidebars from below and left…i have made a demo here ..you can check —http://aricsconstruction.com/wordpress/advertisement-policy/ hence now i want to show angry bird game on whole page

hence my question is that can i increase width of 1 or 2 pages without other pages being afffected