Various Cheats:

These cheat should work with any version of the game.

Enter the hacking system in the game. Unlock the command allowing "cheats." Enter the following codes:

Infinite Ammo: 1DDF2556
Maximum Firepower: 0034AFFF
Focus Restored fast: FFF0020A
Unlimited Health: 7F4DF451
Enemies can not See You: FFFFFFF1
Turbo: FF00001A
Infinite Focus: 69E5D9E4
Test Level: 13D2C77F
Multi-Player Fighting: D5C55D1E
Moon Gravity: BB013FFF
Fastest Logos: 7867F443
Taxi Driving: 312MF451
Enemies Can Not hear You: 4516DF45

The One:

To get Neo: F2222546
To get Trinity: 00F58256
To get Morpheous: 02568974

Various Phone Numbers:

001-949-555-0112
001-714-555-0187
001-213-555-0142
001-310-555-0111
001-949-555-0101

Hacking engine tools:

In Hacking engine (which is accessed from the title screen), there are a number of directories and tools that can be useful (such as spawning a weapon within The Matrix.).

Command Effect
DIR List files and folders
CLS Clear the screen of text
HELP Extended help for a command
TRACEKILL Kills traces
READ Read *.txt files
VIEW View *.img files
PLAY Play *.fmv files
DROP JXTRR10 Weapon drop at Drainage Canal
DROP PNSRZ10 Weapon drop at North Concourse
DROP RKHMS10 Weapon drop at Airport Tunneld
DROP JDZMT10 Weapon drop at 2nd Floor West (Chateau)
DROP ZKHBD10 Weapon drop at Courtyard (Chateau)
DROP RHFTQ10 Weapon drop at Skyscraper
DROP ZSZQH10 Weapon drop at Warehouse (Chinatown)
DROP JDHQL10 Weapon drop at Transformer Field (power plant)
DROP B1AXXF2 Weapon drop at 2nd Floor PO Boxes

Morpheus message

In the Hacking engine, instead of using "GUEST", you can LOGIN as FREEMIND or COWBOYCURTIS to hear a message from Morpheus.