There is only one confirmed working cheat at the moment:
You can rename your pilots name. 
When doing so, type: Wolfblitz

This should give you access to all the missions, in 
case you get stuck on some campaign.

Submittedby: iam_aha@hotmail.com
 
 
Cheat mode:
You can try of the following pilot names, but not sure:
 
Result Name 
Master code - big star 
Level select - wolfblitz or that's easy 
God mode - supra heli 
No enemies - no losers 
Small enemies - it's to small 
 
  
 Demoversion:
 Open the file c4.cfg and process the following lines:
 
 One can process these lines, if one wants to obtain 
 more dissolution.
 
 hw3d_res640x480 = 1 
 hw3d_res800x600 = 1 
 hw3d_res1024x768 = 1
 hw3d_res1280X1024 = 0 
 hw3d_res1600X1200 = 0
 
 This as admits here is for diagram:
 
 terrain_detail = 2 
 object_detail = 2 
 texture_res = 1 
 water_quality = 3
 shadow_quality = 2