Image credits for GI Spelunky

http://assets1.ignimgs.com/vid/thumbnails/user/2013/08/08/splenkunythumb.jpg
http://www.crit-hit.net/wp-content/uploads/2012/07/spelunky-coop.png
http://cdn2.gamefront.com/wp-content/uploads/2012/07/s4.jpg
http://www.twinfinite.net/wp-content/uploads/2013/10/Spelunky-Art-2.jpg