Warning: These games use java applets. They won't work if your browser isn't configured to use java. In addition, they like to crash Netscape on a regular basis. (My version of Netscape anyway...)
P.S. If you get a good score on Concentration or Slide Puzzle, take a screencap and send it to me. I want to make a highscores table.
P.P.S. If you reload the Concentration or Slide Puzzle pages, you'll get new images.