Star Trek Invasion Cheats & Tips

Cheat mode
At the mission selection screen, press Up, Left, Down, Right, Up, Right, Down, Left, Up, L1 + R1, L2 + R2. If you entered the code correctly, the screen will flash. All missions will be unlocked, and when the game is paused a "Cheat Screen" option will appear on the bottom of the menu with such selections as "Player Can't Die", "All Weapons", and "One Hit Kills".

View credits
At the mission briefing screen, press [Left, Right, Up, Down] five times.

Secret mission 1A
Complete mission 1 in under 5 minutes 2 seconds with more than 40% accuracy.

Secret mission 4A
Complete mission 4 in under 6 minutes 44 seconds with more than 40% accuracy.

Secret mission 5A
Destroy half of the energy plough and use your tractor beam on the second half in mission 5.

Secret mission 5B
Search for the info unit between the two asteroids, near the broken shuttle in mission 5 and use the tractor beam to acquire it.