back, down, forwad, low punch? (button 3) I think.

~CYD

Thank you!

On Genesis, it was: back, back, low punch

I'm not sure why that was the only Fatality that change, but oh well. At least now I know it's back, down, foward, low punch

so y is it called arcade perfect?

Why to sell more copies ym friend Seriously it's great but by the time i get to end of the credits the games moves so slow i thought they forgot to have sonya jump in.

And actually, in the arcade, you didn't need to press a sequence of buttons to do a Fatality. You just have to rotate the control stick a half-circle.

...what?

In the original MK arcade game (this change to button sequences in MK2 and so-forth), you didn't have to press a sequence of buttons, everyone could perform a Fatality the same exact way.
The control stick had 8 directions on it (U,D,F,B,BU,BD,FU,FD)
You just had to rotate the control stick a half circle at the top of the control stick (B,BU,U,FU,F,B)
I'm not sure if they changed this in later releases of the MK1 arcade game, or if the button sequence did indeed start in the MK2 arcade game, but this is how MK1 was originally in the arcades.