badCoder released a brew for the RetroEmu Summer Coding Competition. It's an adventure game that uses backgrounds and sprites from a bunch of random oldschool games.
Quote
Overview: Passage to Demarr is an adventure game like the good old days of point and click. Only it isn't point and click. The point and clicky part of it was buggy so I ditched it and created movement kind of like zelda ph movement. It's retro in the sense that there aren't any boss battles or anything like that, but rather puzzle which you solve. There are a couple of minigames along the way and many items to collect. I wrote this in about a month and a half and while that may be more than enough time for the uber coders out there, that's very quick for me so please report bugs!