Frogger
Space Invaders
Simon
Tic Tac Toe
Snake - Nokia Phone game
Asteroids
N-Blox - Tertis type game
Hexxagon - an adaptation of the board game Othello
Neave.comyou will see these Paul Neaves flash games all over the net, as he used to give out the source code that you modify for your own use.
As well as the games, check the rest of his site out, quite interesting and cool stuff too.
It's a shame he had to pull his flash version of PacMan tho, he had the copyright lawyers on his back. I have it somewhere if anyone wants it, its an exe file not a swf file