cheater

cheater

jackass

haxorzzzzz nooobbeezzz

Ok, these aren't SuperUnlockables, because you can't unlock them any way EXCEPT the Action Replay, but here are the codes:
Drahmin
EG4U-NH1N-D8N6C
HX1T-K8HE-3VN0A
3P82-442J-A79Z0
2FVU-0E9J-G9AAH
121P-BH6E-1EF3Q
Kitana
0KUC-XGHY-8RJW4
U3AV-C8DH-GGZPD
TP9G-HAMG-W0FJ7
JJBN-MRWJ-561RJ
YVXK-V0KV-THQMD
Frost
AKGA-48FK-P8TV5
NUXW-65RV-9YVHT
QGQ3-BB7H-TQPDU
9T2D-HRP6-HX9QX
PJNW-0WD8-4GYCF
Shang Tsung
50MT-45TY-X847R
T9TA-7DWE-D88MU
9NXN-P45R-Y3BQ8
RNKE-ENDK-KZB7Z
1HCG-F7D3-FEP90
Nitara
1GFR-MCQC-K41J4
RYPJ-V8XW-W1A5D
JER5-B4AC-ZF194
2GXK-MV8F-Q52JN
ZCFE-2KEP-6DNKP
Sonya
C8XA-F855-JY56J
15GU-W5HU-X5KQ6
M276-JP31-XXMEB
J7GH-MDWC-19TWB
3WCK-XGR4-A3XRA
Johnny Cage
4Y7E-6K7E-TR20X
0BUH-XNY7-0255E
NUWE-T7PV-BKCJT
8WAX-UG4N-AMJPN
J41E-C9QT-F8442
Kung Lao
HGKH-W29K-W5YJ9
XN43-X74C-R5VQQ
0NR4-F2AM-AFQD5
CG7D-YRXZ-N6747
NPVM-XQQ4-E8XAW
QuanChi
F24H-6N05-G9R6H
H54G-MA0Y-Z9ZHV
Y4ZP-2CN8-FWWJQ
K4QQ-28UH-XJU27
BT02-7PZY-T2B5T
Old Raiden
Q661-3C8M-F7JT3
P47Q-PY77-722H8
EM9B-FKEV-K3AJG
PK5A-NYTE-Q4YRA
T488-NCAZ-4TC6M
Jax
68ZM-2D44-P78J4
70QG-C188-1JGX8
CCKF-29VA-EG030
RHCV-C18K-XFARP
UZHQ-RZTT-DAQ7P
Onaga
VM1X-NU0P-YP8P2
7NWT-NZFV-D5BYM
PDK7-441U-JA0Y6
F38F-QEHU-87DTD
3YYV-EJXE-VT830
Monster
1TB7-D5P0-P953G
MRDD-BB3W-4QDRU
HJ93-9XZU-0CFW4
817Y-WJMJ-5NGVH
ZK8J-5JXJ-4TNP2
Shunjiko Age 13
YBEJ-UHK9-1RDXR
EDGB-PC9X-673CM
46KF-3CB4-1JBZP
0WY5-T3KD-Z8BD3
57C0-6G53-94X1M
Liu Kang Ghost
1NVA-VZAA-0857D
RBW1-ADJ0-10HP5
DXCM-EK4D-3KCAX
M2HT-A87Y-UEJEK
WA2Y-WU34-M4W73
These codes replace Scorpion in the select screen with the character you choose. You can only use one of them at a time or the game will crash.

Where do you enter these codes?

In your Action Replay Max.

If you'll direct your attention to my sig, either the codes don't work, or I'm doing something wrong...

Bear in mind I haven't tested these codes myself (I don't have an Action Replay) and you will need the Master Code.