First person view:
Press Square + Triangle + Start. Game play will be paused. Press Start to 
resume game play with the new camera angle. Substitute Select in the code 
instead of Start for the Japanese version of the game. 

Fixed camera view:
Press Circle + X + Start. Game play will be paused. Press Start to resume 
game play with the camera fixed at the present location. Substitute Select 
in the code instead of Start for the Japanese version of the game. 

Return to default view:
To return to the default view, press Start to pause game play, then press 
Start to resume. Substitute Select instead of Start for the Japanese version 
of the game. 

Death bonuses:
Intentionally die with less than -50,000 credits. The game will restart from 
the first level with all items gained in the previous game. The first time this 
is done, the radar will become a grid system. The fourth time this is done, 
the rear weapon may be fired while in motion. The sixth time that this is done, 
available energy will be doubled.