Constantine cheats and cheat codes for Playstation 2

During a game play Press Select to enter the journal screen, then press
any of the following buttion combinations.
A flash will confirm correct code entry. 

Unlimited ammo: 
Press Left, Right, Left, Square, Triangle, Square, Square, Triangle, 
Triangle, Square, Triangle, Square, Square, Triangle, Triangle. 

Big weapons:
Press Left, Square, Square, Square, Triangle, Triangle, Triangle. 

Giant demon heads:
Press R2, Left, Right, Left, Left, Right, Left, R2. 

Invincibility:
Press Left, Right, Right, Left, Left, Right, Right, Left, Square, Square.

Skip stages:
Press Right, Left, Right, Left, Right, Left, Square, Circle, Circle, 
Square, Square, Square, Square, Circle, Circle.

Rapid fire Luger:
Press R2, Left, L2, Left, Square, Circle, Square, Circle. 

Single-shot kill:
Press R2, Left, Right, Right, Right, Right, Square, Square. 

Small fireballs:
Press Circle, Circle, Circle, Left, Right, Right, Left, Right, Left. 

Green fireballs:
Press Circle, Circle, Circle, Left, Right, Right, Right, Left, Square, Square. 

Purple fireballs:
Press Circle, Circle, Circle, Left, Right, Right, Right, Left, Circle, Circle. 

First person view:
Press R2, L2, L2, R2, Left, Left, Right, Right. 

Motion Blur:
Press Square, R2, R2, Circle, Circle, Right, Right. 

Slow demons:
Press Square, R2, Right, Circle, Circle, Circle, Left, Left. 

Display timer:
Press Circle, Circle, Circle, Circle, Square, Square, Square, Square, Left. 

Unlimited Spell Soul energy: 
Press Left, Right, Right, Left, Left, Right, Right, Left, Triangle, Triangle. 

Rapid fire shotgun: 
Press L2, Left, R2, Left, Triangle, Square, Triangle, Square. 

Explosive Holy Bombs: 
Press Right, Left, Square, Triangle, Square, Triangle, Left, Right.

Big fireballs:
Press Triangle, Triangle, Triangle, Left, Right, Right, Left, Left, Right.