These are on-line jave games collected from the web. Most highly recommended is the Jumping jesus game, an entertaining take on breakout with soud effects thrown in, well worth a look. As for the Jigsaw, I got his with a job lot of Java from cut and paste java srript ( an on-line resource ). The Checkers game is not to my taste because I play chess and loath checkers.

Jigsaw puzzel
Checkers
Jumping Jesus on a Pogo Stick