It's Spelunky! And I die a lot! Woo!
For those who have asked me where I got the Spelunky download from, I got it here: http://forums.tigsource.com/index.php?topic=4017.0
It's the first thing you get when you search for "spelunky" in google. *nods*
This game may never be finished, and may just turn into a let's fail because I am really bad at it.