Mortal Kombat 4 [GBC]

Bonus credits:
Press Up at the difficulty selection screen to obtain up to five credits.

Kombat Kodes:
Enter one of the following codes before a match begins.

Character Number
Dragon 0
MK Logo 1
Ying-Yang 2
Four 3
Question Mark 4
Lightning Bolt 5
Goro 6
Raiden 7
Shao Kahn 8
Skull 9

Effect Kombat Kode
Fight as Reptile 192-234
Fight against Reptile 205-205
Disable throws 100-100
Swicharoo 460-460
Dark Kombat 688-422
Psycho Kombat 985-125
No blocking 020-020
Programmer's message 987-666
Programmer's message 123-926
CPU 25% life 000-707
CPU 50% life 000-033
Player 1 25% life 707-000
Player 1 50% life 033-000
One-hit win 123-123
Noob Saibot mode 012-012
Explosive Kombat 050-050
Weapons never dropped 002-002
Disable max damage 010-010
No throw, disable max damage 110-110
Random weapon appears 111-111
Start with random weapon 222-222
Randper Kombat 333-333
Start with weapons drawn 444-444
Many weapons 555-555
Silent Kombat 666-666
Big heads 321-321

Reptile's Fatality:
Hold A + B and press Up when the "Finish Him" message appears.

Acid Spit:
Down, Forward, B
Running Charge: Back, Forward, B

Scorpion's auto-fatality:
Begin game play as Scorpion and win the second round using only the spear. Finish your opponent with a throw, and keep B held. The message "Scorpion Wins" will appear. Keep B held for Scorpion's fatality.