The first is the trippy and hilarious game by Old Spice, that company with the ridiculous commercials. The game is kind of like that only even crazier, and it's called Dikembe Mutombo's 4 1/2 Weeks to Save the World, named after and based on the supposed end of the world predicted by the end of the Mayan calendar. Each week, a new minigame/level is made available in this game, leading up to the end of the world on December 21, 2012. It's not really super fun, but it's worth checking out for the ridiculous cutscenes. Play it here!
The second game is called Skrillex Quest. It's a game obviously inspired by the original Zelda and it tells the story of the people inside the game as their world is overrun by glitches caused by dust in the cartridge. The glitch effects are pretty neat and very similar to the graphical glitches that sometimes happened in NES games. The goal is to collect keys and items and basically just explore and fight glitch blocks. It's got simple 3D graphics and the main character looks like the girl from Swords & Sworcery. The Skrillex part of the game comes in as the soundtrack; and the unique electronic style matches the glitched game setting quite well. Check this one out here The original site is down, but you can still play it here!