Extra lives and more
At Title Screen press Y, B, A, B, Y, Y, B, A, B, Y, B. Mission and lives screen appears. X increases Planes, A decreases Planes, Y increases Mission, B decreases Mission.
At Title Screen press Y, B, A, B, Y, Y, B, A, B, Y, B. Mission and lives screen appears. X increases Planes, A decreases Planes, Y increases Mission, B decreases Mission.