Make more than one sample, then you can make it choose one at random.
Instead of making the sample play, set Value A of [spare object] to 1+random(3).
[spare object]'s value A = 1, play sound 1, set A to 0
[spare object]'s value A = 2, play sound 2, set A to 0
[spare object]'s value A = 3, play sound 3, set A to 0
Don't aim for perfection- you'll miss the deadline
'~Tom~ says (16:41):
well why does the custom controls for the keyboard palyer even affect the menu controls at all whats thep oint jsutm ake it so for the keyboard palyer on the menu screens everything is always up down left right enter regardless of the controls they set'
If it's an impact it might benefit from changing the frequency too. If they're on their own channel just tell it to randomise the frequency of that channel, then play the sample.