1. James Bond Enters The Aztec Temple In Goldeneye
As a kid, I never made it this far in Goldeneye. Secret Agent mode just seemed too hard. So I always wondered what the last two blacked out squares on the level screen were. I knew they had to be levels, but my nine-year-old brain could not fathom how to unlock them (I didn't have a guidebook and the Internet was still something of the extraterrestrial to me). So recently, I returned to Goldeneye and destroyed it by unlocking everything. Even if I had reached Aztec as a kid, I don't think I would have been able to beat it. This level is one of the hardest in the game. It's also hands down one of the best secret levels ever created. Not only do you get to face Roger Moore's giant nemesis Jaws, but you get to duel wield Moonraker laser-guns and launch a spaceship. Just mind the after burners.