• Stage codes

On the following stages, input these codes for the following effects.

Code - Effect

Stage 3: press Start and speed fast - get 100 missiles
Stage 9: press Vulcan Cannon + Missile and stick Right - get 100 missiles
Stage 21: press Start + Vulcan Cannon + Missile + Foto sensor and stick Up - get 250,000,000 pts
Stage 11: press Vulcan Cannon + Missile and stick Left - get 50,000,000 pts
During Demo: press Start + Vulcan Cannon + Missile + Foto sensor and stick Right - get a DUKE message
Stage 5: press Start + Vulcan Cannon + Missile - get a message
Stage 13: press Start + Vulcan Cannon + Missile and stick Left - get a message
Stage 16: press Start and stick down - get a message
Stage 19: press Start - get a message
Stage 1: press Start + Vulcan Cannon + Missile - get a message
Stage 23: press Start + Vulcan Cannon + Missile + Foto sensor - get a message