Automatic weapons:
Complete story mode two times.

Wide effect ammuntion:
Complete story mode four times. Note: Enable unlimited ammunition on the fourth attempt.

Mirror mode:
Complete story mode without using any continues.

Unlimited credits:
Intentionally lose the game in story mode. The next time story mode is played, there will be one more credit available. The number of credits will be unlimited (free play mode) after the game is lost with nine credits.
Unlimited ammunition:
Complete story mode three times.

Note: Enable automatic weapons on the third attempt