See Playstation Arcades Greatest Hits The Atari Collection Volume 2 cheats here!

Extra health (Gauntlet)
Do not press any buttons or the D-pad when game the begins or when restarting a level after losing a life. Instead, immediately tap Credit rapidly to gain a large amount of health.


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Game Shark Codes


Millipede  

Infinite Lives               8016782A 0203
Gauntlet  

Wizard Codes

Infinite Health              801D7DD0 07CC
Infinite Keys                80193762 0001
Infinite Potion              80193416 0001

Elf Codes

Infinite Health              801D7DD4 07CC
Infinite Keys                80193762 0100
Infinite Potion              80193416 0100

Warrior Codes
    
Infinite Health              801D7DC8 07CC
Infinite Keys                80193760 0001
Infinite Potion              80193414 0001

Valkyrie Codes  

Infinite Health              801D7DCC 07CC
Infinite Keys                80193760 0101
Infinite Potion              80193414 0101

Paperboy  

Infinite Papers              801E2540 000A
Infinite Lives               801E2388 0004
Start With A Score Of 65,535 801E237C FFFF

Crystal Castle

Infinite Lives               80170F8A 0003
Invincible                   80170F90 0800

Marble Madness  

Infinite Time                80133C7C 0063

Roadblasters

Infinite Fuel                8014FA10 00DB
Invincible                   8014F4C4 0041
Infinite Special Weapon Ammo 8014F47C 0019
Have Nitro Injector          8014F594 0001
Have Cruise Missiles         8014F594 0002
Have Electric Field          8014F594 0003
Have VZ Cannon               8014F594 0004