Mortal Kombat: Armageddon Cheats - PlayStation 2

Unlock Meat, Daegon, Blaze and Taven
The Relic items needed to unlock Meat, Daegon and Blaze are found all throughout the Konquest Mode:

Unlock Blaze - Collect 50 Relic items in Konquest Mode
Unlock Daegon - Collect 30 Relic items in Konquest Mode
Unlock Meat - Collect 10 Relic items in Konquest Mode
Unlock Taven - Complete Konquest Mode

Play as Human Smoke in UMK3
This code will allow you to play as Human Smoke in the Armageddon emulation of Ultimate Mortal Kombat 3:

Pick smoke, hold [HP], [HK], [BL], [RN], and [Away] until match starts.

Passwords
Enter the following Ultimate Mortal Kombat 3 Kombat codes in the Armageddon emulation of Ultimate Mortal Kombat 3.

Press the [LP], [Block], [LK] keys on the following controllers the listed number of strikes on the pre-match VS screen for various effects. Note that you can hold UP on your joystick and press the difference between ten and the listed number (i.e., if you need to press something 8 times, you can hold UP and press that key twice instead). Player 1 must do the first three numbers while player 2 does the second three:

6 - 8 - 8 - 4 - 2 - 2 Dark Kombat
2 - 7 - 7 - 2 - 7 - 7 Explosive Kombat (2V2)
0 - 2 - 2 - 2 - 2 - 0 Explosive Kombat, No Throws (2V2)
7 - 8 - 8 - 3 - 2 - 2 Fast Uppercut
6 - 4 - 2 - 4 - 6 - 8 Galaga Before Match
4 - 6 - 6 - 4 - 6 - 6 Infinite Run/Combo time
0 - 2 - 0 - 0 - 2 - 0 No Blocking
9 - 8 - 7 - 1 - 2 - 3 No Power Bar
3 - 0 - 0 - 3 - 0 - 0 No Sound Kombat
0 - 3 - 3 - 0 - 0 - 0 P1 Half Life
7 - 0 - 7 - 0 - 0 - 0 P1 Low Life
0 - 0 - 0 - 0 - 3 - 3 P2 Half Life
0 - 0 - 0 - 7 - 0 - 7 P2 Low Life
9 - 8 - 5 - 1 - 2 - 5 Psycho Kombat
4 - 6 - 0 - 4 - 6 - 0 Random Kombat 1
4 - 4 - 4 - 4 - 4 - 4 Random Kombat 2
0 - 9 - 1 - 1 - 9 - 0 Stage Select: Bell Tower
0 - 7 - 7 - 0 - 2 - 2 Stage Select: Bridge
6 - 6 - 6 - 3 - 3 - 3 Stage Select: Graveyard
3 - 3 - 0 - 0 - 3 - 3 Stage Select: Jade's Desert
0 - 0 - 4 - 7 - 0 - 0 Stage Select: Khan's Kave
8 - 8 - 0 - 2 - 2 - 0 Stage Select: Khan's Tower
6 - 0 - 0 - 0 - 4 - 0 Stage Select: Kombat Temple
0 - 5 - 0 - 0 - 5 - 0 Stage Select: Noob's Lair
8 - 2 - 0 - 0 - 2 - 8 Stage Select: Pit 3
0 - 0 - 2 - 0 - 0 - 3 Stage Select: River Kombat
3 - 4 - 3 - 3 - 4 - 3 Stage Select: Rooftop
6 - 6 - 6 - 4 - 4 - 4 Stage Select: Scorpion's Hell (Netherrealm)
1 - 2 - 3 - 9 - 0 - 4 Stage Select: Soul Chamber
0 - 7 - 9 - 0 - 3 - 5 Stage Select: Street
8 - 8 - 0 - 0 - 8 - 8 Stage Select: Subway
1 - 0 - 0 - 1 - 0 - 0 Throwing Disabled
9 - 6 - 9 - 1 - 4 - 1 Winner Of R1 Fights Motaro
7 - 6 - 9 - 3 - 4 - 2 Winner Of R1 Fights Noob Saibot
0 - 3 - 3 - 5 - 6 - 4 Winner Of R1 Fights Shao Khan
2 - 0 - 5 - 2 - 0 - 5 Winner Of R1 Fights Smoke

Unlock Arenas
Artika Arena - Beat all 7 trials in Artika Obliesk
Pyramid of Argus Arena - Collect 40 Relics in Konquest Mode

Play as 0
There is a Debug character known as "0", with a fighting style called, "Bug This". The look of the character is that of an unaltered female Create-A-Fighter. In order to use said character, start up a 2-Player game. From there, try to switch profiles while selecting your created fighter. If done correctly, when you go into the fight, you'll be playing as "0".