I also came across Farbs.org through my own Project Wonderful and it is fantastic. This guy has put up three of his own indie games and I really recommend ROM CHECK FAIL: it's a game that melds Mario with Zelda with Pac Man with Space Invaders with - well, tons of other games. The basic gameplay is that every five seconds, the tile set, main character, enemies and music are randomly swapped with another classic game. At first it's just fun for the crazy combinations, but then the gameplay deepens when you realize you have about 3 seconds to attack and then 1 second for defence, because you don't know what you'll swap into next. You may be Pac-Man about to eat blue ghosts, when suddenly you're Mario and they're Gauntlet ghosts coming in from above and you are totally pooched. Original and fun and I can beat it but only once!

– Ryan