Cheat Codes
Change the date to May 16 e.g.
05-16-95
New enemy like laser shooting cow and barrel will appear.

**Works on the Registered Version only**

Press BACKSPACE during the game, you will get Deathray and full energy with the price of all money, but it can still work even your money is 0

Type below in DOS prompt before enter game:
SET S_HOST=CASTLE

You will get THE ultimate craft, all weapons and tons of cash ** you should see the message "GOD mode enabled" in the top left of the screen.**

Warp - This is a 2 key code. At the "Sector" screen type:

Z (if you want to go to Bravo Sector)
X (if you want to go to Tango Sector)
Y (if you want to got to Other Regions)

Then let go of that key and push.....

Q (for level 1)
W (for level 2)
E (for level 3)
R (for level 4)
T (for level 5)
Y (for level 6)
U (for level 7)
I (for level 8)
O (for level 9)

Cheat Edit
edit money
edit RAP.EXE
go sector 540 offset 446 - 448
change 10 27 00 to 7F 96 98