Game Boy Camera
Hidden Game

On the Main Menu, access the "Play" option. When the Space Fever II game begins, dont shoot the first two objects. Get a high score of 2,000 points or more then Exit and Enter the game again. This time a Question Mark will be in the middle of the screen. Shoot it and you'll be able to play the game "Run, Run, Run" This game will also utilize your face. If you get first place, rapidly press A to make the flag rise. If you do this, a crown will fall on your head.

Gex: Enter the Gecko
Turn the Mona Lisa on/off

In the first level, next to a door will be a book case. Do the tail attack on the books, and the bookcase will retract. Flip the lever, then super-jump up to the picture of the Mona Lisa. It will give you an option to turn it on or off.

Go Go Tank
Seven Chances and Invincibility

On the Title Screen, press LEFT, UP, RIGHT, UP, LEFT, LEFT, UP, RIGHT, UP, LEFT, UP, RIGHT and START. You'll have seven lives and seven continues. For invincibility, on the Title Screen, press LEFT, UP, RIGHT, UP, LEFT, LEFT, UP, RIGHT, UP, LEFT, UP, LEFT and START.