Baldur's Gate: Dark Alliance II:
Invulnerability and Level Select:
Hold L1 + R1 + Triangle + Square + Circle + X then push Start to open a menu which has level warp and invulnerability options.
Gain Levels and Money:
Hold L1 + R1 + Triangle + Square + Circle + X then push L2 to set your character to level 10 with 45 available skill points and $500,000 in your pocket.
Unlock Characters:
Extreme Mode - Complete the game on any setting
Artemis Entreri - Complete Extreme Mode
Drizzt Do'Urdan - Complete the game on any setting.