After Burner II [Model T-17013]

Arcade Mode: First, set your options. Then at the Sega logo, hold A+C and hit Start on Pad two. In done correctly, you'll hear ''Get Ready&a

Automatic Firing: Hold A + B on controller 2 and press START on Controller 1.

Continue: Press Left, Left, Left, B, B, B, C, C, C, and Start at the title screen.

Level Select: To select and level up to level 21, press and hold A, B and C and press Start twice. Use the control pad to choose which level

Reverse Plane Controls: Hold A+B on controller 2, while pressing START on controller 1.

Extra missiles:
To get extra missiles, press the following while refueling:
Level 11: Right
Level 13: Left
Level 16: Left
Level 19: Up
Level 21: Right
Level 3: Left
Level 5: Right
Level 9: Up