Wing Commander: Prophecy

After typing in "dynomite" in the cockpit, 

Hit "CTRL + C" to turn on/off collisions
Hit "CTRL + I" to toggle invulnerable
Hit "CTRL + F12" to destroy whatever you have targeted

Enabling 'dynomite' in simulation mission 2 
also adds another waypoint of enemy fighters. 

Also something fun to try in Prophecy simulator: 
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Get close to or fire on the TCA Base in simulator mission 0. 
A Dralthi labeled 'hrai Hhallas' will appear. 
Chase down this Dralthi and destroy it before it jumps out.  
A quartet of 'hrai Hhallas' Vaktoth will attack you. Defeat 
them, and proceed with the mission as usual. Instead of ending 
in the usual place, it will send you to an additional extra end 
navpoint where you defend the Midway against a trio of Vaktoth. 

Extra Ships:
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While in the simulator on the Midway type 
"alswantsmoreships" before picking your mission. 
Then you can fly the alien ships and two Kilrathi ships.