This trainer offers the following:

  F1 : Unlimited Energy
  F2 : Unlimited Cannon
  F3 : Unlimited Rockets
  F4 : Unlimited Missiles
  F5 : Unlimited Bombs
  F6 : Unlimited Cluster Bombs
  F7 : Unlimited Micromissiles
  F8 : Max Score (then you can buy what you want in the shop)
  F9 : Level Skip

  Notice #1: Level skip works that way, that if you want to complete a mission
             hit escape and choose yes to abandon the mission. Normally you 
             fail, but not if you have used F9 ;)

  Notice #2: The Max score requires that you shoot down atleast one enemy.