FAST Pack Glitch
     Begin  a space mission and use the Super Veritech. After you beat
the  space  mission  and  select  "Continue"  you  will start the next
mission  with a Super Veritech even if the next mission does not allow
FAST Packs to be used.

Invincibility
     Enter  Training Mode, and select Fighter Training. After shooting
down  the first two targets, immediately pause and quit Training Mode.
Then begin story mode, and you will now be invincible.