Shadow of Rome cheats and cheat codes for Playstation 2

Unlock cheat mode
First you have to finish both of normal and hard mode to unlock extreme
difficulty level. After, you have to complete extreme mode. You have to 
earning bronze, silver, and gold cups in all arenas to unlock the cheats. 
If you wanto to unlock all of the cheats, you have to get a gold cup in 
all arenas. This is really sad.

DemiGod (invincibility) - Gold Cup in all arenas on extreme. 
Instant Kill (enemies die from one attack) - Gold Cup in all arenas on extreme.
Unbreakable (weapons never break) - Silver Cup in all arenas on extreme.  
Juggernaut (enemies cannot block) - Silver Cup in all arenas on extreme. 
The Oracle (enemy life gauge revealed) - Bronze Cup in all arenas on extreme. 
The Unseen (invisible enemies) - Bronze Cup in all arenas on extreme. 

Getting Gold Fortune Coins:
During the stealth segments, rare coins can be discovered. Octavianus can find 
one Gold Fortune coin on the final guard in any given location. To obtain it, you 
must disable every opponent in the given area first. The last man you search (with 
the Circle button) will yield this rare coin!

Unlock Survival Mode - Get a Silver rank on all the normal events.
Unlock Labyrinth Arena - Get a Silver rank on all the hard events.
Unlock Ugly Duck Fling Mini Game - Get a Bronze rank on all the hard events.
Unlock Art Gallery - Get a Bronze rank on all the normal events.

Armor Upgrade 1:
Earn 300,000 Salvo points by playing through many battles. The points are 
cumulative. You will be given a strong helmet and arm bracer at the start of every 
battle from now on.

Armor Upgrade 2:
You will obtain yet another armor upgrade after gaining 800,000 Salvo points.

Unlock special costumes and haircuts for octavianus:
When you buy a certain amount of items from the vendors in the city gates area, 
you are given special items delivered to your house as Octavianus. You can 
access all of these by selecting them from your dresser.

Chameleon suit - Buy all items from all vendors
Crew Cut - Given from start
Mr. Onion Head - Buy at least 5 items
Pansa's Robe - Buy at least 10 items
Splitting Head Ache - Buy at least 20 items

Vitality Opponent Gauge:
Get bronze in all Extreme gladitorial events. It's visible if 'ON' is selected.

Weapons Cache:
In the Syracuse prison 2nd floor, there are two wooden crates that contains a two-
handed weapon, as well as a one handed weapon. These are only there when you 
play as Agrippa when you are exiting the prison. The boxes are in a hole on the 
rock side of the pathway.