At the main screen press ALT-SHIFT-CTRL on the right side of the keyboard. After you do that
every plane will be available to fly.

Shadow Warrior

To use these codes, press T while playing, type them in and press Enter:
Hold down CTRL or ALT and type "swchan" God mode
Hold down CTRL or ALT and type"swgimme" All items
Hold down CTRL and type "swghost No clipping mode
Hold down CTRL and type "swgreed" Turns on all cheat codes
Hold down CTRL and type "swtrix" Bunny Cannon
Hold down CTRL and type"winpachinko" Win at pachinko every time
Hold down CTRL and type"swtrekky???" Warp: swtrekky021 = Second Shareware Level Shareware Level

Terminal Velocity

trigods - invincible
maniacs - afterburner
trishld  - full shields
trinext  - next level
trscope - ???? oscilloscope ???? Any one know why?
triburn  - terminal velocity
trframe - frame counter
3DREALM - (All caps!)Give you all available weapons and afterburner
TRIFIR# (where # is a Number between 1-6): This gives you a supply of each of the weapons
TRIFIR8 - Afterburner
TRIFIR9 - Invisibility
TRIFIR0 - Invincibility