Detana! Twin-Bee Yahoo!

Level Skip
Obtain 573,000 or more points in Twin Bee Yahoo mode. Then, pause the game and press Left, Left, Right, Right, Down, Up, Down, Up, Circle, Circle, Square, Square, Triangle, X, Triangle, Triangle.
Dark Play
In Arcade Mode, pause gameplay and press Up, Up, Down, Down, Left, Right, Left, Right, X, Circle.

------------------------------------------------------------------
 Devil Dice

------------------------------------------------------------------
 Devil Summoner 2: Soul Hackers

------------------------------------------------------------------
 Diablo

Transfer Trick
Start a two-player game and load two characters or load one and start a new one. Now transfer all gold and any equipment to one character. Save that character and start a new game again. When you load the character, all you need to do is sell stuff and build a gold pile. Keep repeating as needed.

------------------------------------------------------------------
 Die Hard Trilogy

Various Cheats for Die Hard 1
Pause gameplay, hold R2 and enter any of the following "Codes":
Effect
Code
God Mode
Right, Up, Down, Square
50 Grenades and 5 Bullets
Right, Square, Down, Circle
Fat Mode
Right, Square, Square, Down
Villains Float Upwards when Shot
Down, Square, Triangle, Down
Forward is Backward, and vice versa
Right, Square, Triangle, Right
Coordinates
Left, Circle, Down, Square
Plant Scream when Shot
Circle, Circle, Square, Square, Right
Skeleton Mode
Triangle(10x), Right(4x)
Silly Mode
Down, Circle, Circle, Down, Triangle, Down
15 Bullets
Down, Square, Square, Right
Unlimited Shotgun Ammo (Repeat to fill other weapons)
Right, Up, Down, Down, Square, Right
Various Cheats for Die Hard 2
Pause gameplay, hold R2 and enter any of the following "Codes":
Effect
Code
Map Editor
Right, Up, Down, Square
Skeleton Mode
Down, Square, Triangle, Down
Lots of Ammo
Right, Square, Left, Circle, Triangle, Down
Fat Mode
Left, Triangle, Right, Down
Fergus Mode
Circle, Down, Down, Square, X, Square
Various Cheats for Die Hard 3
Pause gameplay, hold R2 and enter any of the following "Codes":
Effect
Code
Fat Mode
Left, Triangle, Right, Down
Fergus Mode
Circle, Down, Down, Triangle, X, Square
Car Floats in Air
Right, Square, Left, Triangle, X, Square
Everything is Flat
(Down, Up, Left, Left) 3x
Slow Motion
Left, Up, Left, Left, Square, Down
Sky Cam Mode
Circle, Right, Down, Square, Triangle, Left
Very Slow Motion
Circle, Down, Down, Square, Right
Fuzzy Dice in Car
Right, Circle, Left, Left, Square, Down
999 Turbos
Circle, Circle, Square, Square, Down, Down, X, X
Infinite Lives
Left, Circle, Up, Down, Square, Right
Level Select/No Clock for DH3
Pause gameplay, hold R2 and press Down, Circle, Left, Square, Up, Square, Left. Then press Start on Controller 2. A menu will appear. Press Triangle to turn off/on the clock. Press Right or Left to choose a level and X to load it. Circle will take you to the next bomb.
Display Coordinates for DH3
Pause gameplay, hold R2 and press Right, Up, Down, Square.
Change Turbos to Lauchers for DH3
Pause gameplay, hold R2 and press Right, Down, Square, Triangle, Left.