To correctly input these codes, first highlight "Change Mission" in the "Options" screen. You'll need to HOLD the pause button before inputting any codes.
| Code | Effect
|
|---|
| - Unlock Missions 1 through 10
|
| - Unlock Missions 1 through 11
|
| - Unlock Missions 1 through 12
|
| - Unlock Missions 1 through 13
|
| - Unlock Missions 1 through 14
|
| - Unlock Missions 1 through 15
|
| - Unlock Missions 1 through 2
|
| - Unlock Missions 1 through 3
|
| - Unlock Missions 1 through 4
|
| - Unlock Missions 1 through 5
|
| - Unlock Missions 1 through 6
|
| - Unlock Missions 1 through 7
|
| - Unlock Missions 1 through 8
|
| - Unlock Missions 1 through 9
|
Weapon restoration: go to select play mode, hold down OPTION and enter code 7-3-4-6-2-8, then release OPTION Invincibility: go to select play mode, hold down PAuSE and enter 2-1-7-8-5-9, then release PAUSE If you enter a code correctly, you will hear a solitary beep. You have to press all the buttons simultaneously.