Enter the Option Mode and press Up, Right, Down, Left, Up, Right, Down, Left, II, II, II, II, Select, Select. A new menu selection called "90,000,000 Start" will appear.
After entering the "90,000,000 START" code, enter these in order to unlock more of the Options Menu:ENDINGDown, 02, Select, Right, 02, Left, Up, Select, Up, Down, Down, Right, 02, Left, Select.MAIN COLOR TYPESelect, 02, Left, Down, 02, 02, Down, Left, 02, Left, Left, Left, Left, Select, Select, 02.