Unlimited continues Game Guru fix:

The 999 Recruits Remaining code in the Game Guru's internal library 
will cause the game to crash after 360 soldiers have been killed. In 
order to continue from this point, a new game must be started and 
patched with the last mission and phase completed. Due to the 
complexity of the saved game file, which saves the kills and rank of 
every soldier, the Game Guru will state that there are "TOO MANY 
CHANGES" when attempting to create a standard Game Guru code. Thus, the 
following manual procedure must be used to create a saved game that can 
be continued: 

- Rename your current "CannonFodder" saved game file to "CannonFodder0"
- Use the Game Guru's Hex Editor and make a note of the value of offsets 
  24 and 48 in the "CannonFodder0" file. This assumes your latest game 
  is in the first saved game slot. Offset 24 corresponds to the phase, 
  and offset 48 corresponds to the mission.
- Start the game and immediately save a new game in the first saved 
  game slot without playing a mission.
- Use the Game Guru's Hex Editor and edit offsets 24 and 48 of the 
  "CannonFodder" saved game file to match those from the "CannonFodder0" 
  file.
- If desired, re-apply the 999 Recruits Remaining and/or Maximum 
  Experience codes from the Game Guru's internal library.
- Load the patched saved game to resume gameplay. 

Note that this may place your phases out of sync. For example, the last 
phase of the Jungle More Jungle, "Donkeytastic", may appear as the 
first phase of Chiller Thriller Killer, which is the next mission. This 
may be corrected by editing offset 24 after the next mission has been 
completed and saved.