Silent Hill 2

Silent Hill 2 cheat codes: 
Cheats:
1) Press [Shift]+[Enter]
2) Enter one of the following codes,
3) Press [Enter]

Fortify everyone:        Union: Hooker;   Confederacy: Longstreet
Eliminate all stress:        U: Hancock,            C: Jackson
Increase experience:         U: Mcclellan;          C: Beauregard
Reset clock to start time:   U: Buford;             C: Stuart
Advance clock to end time:   U: Sedgewick;          C: Pickett
Bring in all reinforcements
immediately:                 U: Reynolds;           C: Hill
Computer vs. Computer mode
(it's a toggle):             U: Halleck;            C: Halleck
Rally all routed troops:     U: Sheridan;           C: Lee
See all troops:              U: Warren;             C: Hotchkiss
See enemy order of battle:   U: Custer;             C: Harrison

Obviously being able to see the AI fight AI is useful as is the reset clock
(since that is what everyone wants to
do it seems.

CHEAT 2:
Note: This procedure involves editing a game file; create a backup
copy of the file before proceeding. Use a text editor to edit the
"options.ini" file in the game folder. Add the following line to
the file if it does not exist, or edit the existing line to match:

SET DX_CONFIG_BULLET 100

This sets the amount of ammunition you get when you pick it up.
Usually, the game can set it to a maximum of x3.