After the interest in the Zelda OOT Beta,
Here is another that you might not know about.

This is shall i shall very interesting.

This code can be used for the regions listed below.

Shadowman (E) (F) (U)

Beta Maze
810596E4 0000

Note:To get the code to work start the game as normal and on the main menu click on "Options" then "In-Game Options" and then press "B" to go back. The game will start loading and you will appear in a maze