Gun Griffon 2 Robot select: Successfully complete normal mode. Then, press Right, Left, Right, Left, A on controller two at the title screen. Any robot may now be selected in scenario mode. Remove radar display: Press Up, Down, A(2), B on controller two. Remove enemy tracking radar: Press C(3), Up, B on controller two. Display destroyed enemies: Press C, B, A, Z, Y on controller two. Pink color: Press Left(2), B, Left, Right on controller two. Black color: Press A, C, B, C(2) on controller two. Expert mode: Successfully complete the game under the normal and hard difficulty levels.