If you head over to this site you can interact a slew of archived sites and minigames that run via Flash. Some of them are actually pretty fun, and may even bring back a lot of childhood memories. However, not all of them are running properly. SKELUX is offering a small reward to those who can help him complete the collection.
As for the flash mini-games, you can play Animal Crossing: Wild World – Trivia, Mario Strikers – Heads Up, Metroid Prime Hunters – Know Your Enemy, Nintendogs Puppy Quiz, Pokemon Trozei – Learn to Play!, and more!