Your browser does not support Java applets. Too bad.

Codebreaker is a game from the arcade in Revelations: Persona.

• Click "Start" to begin a new game.
• The arrow keys move the cursor (or click a number to select it).
• Type a number on the keyboard to change that grid location to that number.
• Click "Check" to see how close your guess is to the actual configuration (or use the Enter key).
• You can use the Spacebar to "lock in" a number (or use the right mouse button).
• You only have four guesses, so choose them carefully.

The complete source code was written in pure Java 1.1, to ensure the applet works in browsers even without the Java Plugin.