Additional ammunition:
This procedure involves editing a game file; create
a backup copy of the file before proceeding. Use a text editor
to edit one of the "level_*" files in the game folder.
Locate the "//Bullets, Projectiles, Missiles" section
and increase the three numbers that follow the "Ammo"
entry that is underneath to set the amount of bullets, projectiles,
and missiles (in that order) that will be available in that level.
Change enemy aggression:
This procedure involves editing a game file; create
a backup copy of the file before proceeding. Use a text editor
to edit one of the "level_*" files in the game folder.
Locate the "//Tank, Jet, HelicopterGun, HelicopterRocket"
section and decrease the four numbers following the "Aggression"
entry to lower how difficult the enemy tanks, jets, helicopter
guns, and helicopter rockets (in that order) will be in that
level. Note: The numbers must be from 1 through 9.