~In Extremis

First Decompress the file EXTREMIS.EXE.  Then search it for 
FF FF FF FF FF FF F4 01 00 00 At Offset 1D8E2, change it to  
01 00 01 00 01 00 FF 30 04 00
                 
This gives you 2 pocket injectors, a bomb, loads of ammo and the 
best laser gun.

Then find E8 03 FF FF FF FF FF FF at Offset 1D8EC, Change it to 
FF 10 FF FF 63 00 63 00

This will give you 5000+ health points, full battery and full oxygen.

