All Lights

Playing Instructions: The objective of the game is to turn all 25 "lights" on. Clicking a square will toggle its light (as well as the lights of all horizontally and vertically adjacent squares) on and off.
Java Source: AllLights.java

HTML Source:

<APPLET CODE="AllLights.class" WIDTH=280 HEIGHT=200></APPLET>
Author: Yasunari Hiramatsu (yasu@catnet.or.jp)