Devil May Cry 3: Dante’s Awakening

					
Unlock Almost Everything
At the start menu hold L1 L2 R1 R2 then rotate the Left Analog-stick. You will here a voice say "Devil May Cry and all modes, costumes, and galleries will be unlocked. Note that you must still complete the stages and buy your skills normally. This code is verified for the U.S. and Japanese versions only.
Get Modes
To unlock Hard Mode beat Normal Mode

To unlock Dante Must Die beat Hard Mode

To unlock Heaven or Hell beat Dante Must die

Unlockable: Alternate Ending

Kill 100 enemies during the credits to get a different ending screen.
Get Characters
Press R1 or L1 at the mission select screen to get different characters.

Beat the game on easy for shirtless Dante

Beat the game on normal for Devil May Cry 1 Dante

Beat the game on hard for shirtless Devil May Cray 1 Dante

Beat the game on hard to unlock the Legendary Dark Knight

Beat the game on hard to unlock Sparda

Unlockable: Infinite Devil Trigger

Beat Dante must die mode to unlock the Devil Trigger.
Get Devil Arms
Cerberus – Complete Mission 3.

Agni & Rudra – Finish Mission 5.

Nevan – Complete Mission 9.

Beowulf – Above the starting spot in Mission 14.

Yamato – Play as Vergil in Mission 19.

Force Edge – Unlock and play as Dante from the first DMC third character if all are unlocked, shirtless Dante, and/or Legendary Dark Knight.
Get Firearms
Shotgun – Inside the bar in mission 3. This is after unlocking the blue exit door.

Artemis – Find and use all three essences on the laser machine in mission 5.

Spiral – The outdoor area in mission 9 has a high area near a waterfall; jump to the high area for the gun.

Kalina Ann – Defeat the mission 16 boss.
Clip Reloading
Tap L2 after firing a slow to reload weapon i.e., shotgun and flick it back to fire it again. It is slightly faster than waiting for the weapon to reload.