Cheat List :

Cheat mode:
You must be on the menu screen that looks like you are on the bridge of the Excelsior to enter the following codes. When you do, a text response will appear in the top right corner of the menu to confirm correct code entry. 

All Ranks and Medals: BLACK, L, R, L, B, R, Y, L, WHITE 
All Ships: BLACK, L, X, L, X, R, R, B, WHITE 
God Mode: BLACK, L, B, L, R, Y, Y, B, WHITE 
All Missions: BLACK, R, L, B, X, L, R, Y, WHITE 
Kobayashi Maru Difficulty: BLACK, L, Y, L, L, X, Y, R, WHITE 
 
Destroying starships:
When you intercept a starship and are having trouble destroying it, fly up behind 
it. They all have phasers on the back, so pull up beside an engine. Concentrate 
your fire on that engine. If done correctly, you will not get hit while destroying the 
starship.

When attacking an "Akula" class starship, disable its shields, then go directly in the 
middle to the impulse engines and fire at the ship. This works almost all of the 
time. The only thing that could hit you are the fighters.

Attacking the Orions:
When attacking the Orions, you do not have to destroy both Orion starships. Just 
disable the shields on each ship, and they should warp out of there.