Maze mini-game
Press Down(2), Left(2), Right, B at the main menu.
Blockade mini-game
Press Up(2), Left, Right, Left(2), Right, L at the main menu.
Alternate screen
Press Up(2), Left, Right on the title screen.
Screen saver
Press Left, Right, Down(2), R at the "X-Mail" and "Newsletters" screens.
Change screen font
Enter the following controller actions at the player selection screen.
Rainbow font
Press Left(2), Up(2), Right(2), Down.
Green and yellow font
Press Up(2), Right(2), Down(2), Left.
Searchlight font
Press Down(2), Left(2), Up(2), Right.