Devil May Cry 2 Cheats (PlayStation 2)

For Dante, press R1, R1, TRIANGLE, SQUARE, R2, R2.

For Lucia, press L1, L1, TRIANGLE, SQUARE, L2, L2.

Dante: At the start screen, press 2(R1), triangle, square, 2(R2). 

  Lucia: At the start screen, press 2(L1), triangle, square, 2(L2).

You can use the Flame Heart amulet to heal! Once you get it in Mission 7 (Dante), equip
it, turn on Devil Trigger (L1), and go stand in some lava. Voila! Instant health.

Beat the game on any difficulty to unlock Dante's first costume, and beat it on Dante Must
Die Mode to unlock his second.

Beat the game on any difficulty to unlock Lucia's first costume, and beat it on Hard Mode
(with Lucia) to unlock her second. Beat the game on Lucia Must Die Mode to unlock the
third costume.