Star Trek - Shattered Universe - Platform: XBox

Cheat mode:
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You must be on the menu screen that looks like you are on the bridge of the 
Excelsior to enter the following codes. If done correctly, a text response will 
appear in the top right corner of the menu.

Level select:
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At the bridge screen, press Black, R, L, B, X, L, R, Y, White to unlock all 
levels.

All ships:
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At the bridge screen, press Black, L, X, L, X, R(2), B, White to unlock all 
ships.

Invincibility:
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At the bridge screen, press Black, L, B, L, R, Y(2), B, White.

All medals and ranks:
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At the bridge screen, press Black, L, R, L, B, R, Y, L, White to unlock all 
medals and ranks.

Destroying starships:
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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. Also 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.