Here is a Cheat Engine table for ThunderWolves. It may work with more versions, just try and see.
Option:
Unlimited Missiles
It will probably work with all helicopters and all weapons.
I will not make more options or updates on request.
(And since I have finished the game already without using any cheats, probably I will not make more options at all. This should be far enough to deal with your enemies.)
How to use this cheat table?
- Install Cheat Engine
- Double-click the .CT file in order to open it.
- Click the PC icon in Cheat Engine in order to select the game process.
- Keep the list.
- Activate the trainer options by checking boxes or setting values from 0 to 1