Sorry to break it to you but thats how you do it.
Try clicking the fatality fast. It is down, back, back, down X. Check which side your on and distance. Remeber if you do it slow, it wont come out. Try doing it fast but not too fast

its: D, B, B, D, 3 (sweep)
sweep = from close 2 steps back

Thanks for the replies. I'll just keep on trying. I love using Ermac and it drives me nuts that I am having trouble doing his other fatality. O well

I was having problems with it at first too... just try to "rush" it... speed over precision... it seems to be this way for most finishers in MKD.

Regarding fatalities in general, is there any way to keep your guy from moving when inputting the codes in the PS2 version? Like cna I hold block and do it so my character isnt jumping all over the place. The back x2 and the forward x2 causes the char to skip forward. Just wondering. again thanks for your help everyone.

Press the Style Change button to change the Style to FATALITY. That should hold your character still.

You're welcome.
No i don't think that it's possible. It's normal thing that your character move while you input the fatality / hara kiri.

oops.. didn't know about that one. Ignore my previous post then.

In PS2 though, once it says "Finish Him" your character is already in Fatality stance though I thought. I know that you change the style in XBOX though.

This is true. Hit it anyways tho and it will hold your character still while you input the commands for the finisher.

Sub thanks a ton for your help, we need a beer toasting icon cause that's what I would put up right now Woohoo thanks to you letting me know about L1 Sub, I finally was able to do it