This modification makes the second opponent in endurance loses the fight without die.
Note that getting to the endurance, after killing the second opponent, he loses the fight but he does not die. Will continue attacking you!
How to:
1 - Unzip the file mk.zip.
2 - Look for the mkt-uj12.bin file and open it in WinHex.
3 - Go to offset 4A494 and change the value from 02 to 01.
PS: In this video, "Freddy Krueger no MK1" means in English "Freddy Krueger in MK1". Sorry portuguese x)
Mame cheat for this romhack:
:mk:39900000:94928
FFFFFFFF:2nd endurance enemie after lose fight don't die