Use the following cheats while the gameplay:
K: Kill target
W: Unlimited weapons for your ship
Shift + W: Unlimited weapons for all ships
G: Complete all primary goals
Shift + G: Complete secondary goals
Alt + G: Complete bonus goals
I: Invincibility
Shift + I: Invincibility for target
Shift + 9: Move backward through secondary weapons
0: Move forward through primary weapons
Shift + 0: Move backward through secondary weapons
R: Rearm request for target
O: Descent-style physics
9: Move forward through secondary weapons
Shift + K: Kill targeted sub-system
Alt + K: 10% damage to ship
Alt + Shift + K: 10% damage to target
C: Send message to enemies
Shift + C: Countermeasure availability for all ships