Can't unlock hiddens in UMK3.

[Alkaiser]

Is there any reason as to why this doesn't work?

I pressed F2 for options then selected Unlock Hiddens but it doesn't work.

I'm using Mame 0.67.

[-=VampyR=-]

Have you tried this ?

http://www.gamewinners.com/arcade/UltimateMortalKombat3.htm

The code to unlock Smoke will unlock Ermac. Other codes will unlock the demonically beautiful Milenna, and the long believed dead Sub-Zero I. Holding down LP, BLK, LK, Run, and the joystick Down and Left or Down and Right, will change Cyborg Smoke into Human Smoke.

Try a newer version of Mame.
I'll check on my UMK later.

[Alkaiser]

Will do.

They worked perfectly. Thanks.

[-=VampyR=-]

Don't mention it brother.