Roll 1d4

1-2 2 extra arms
3-4 4 extra arms

-5 to Disguise/extra pair of arms

When fighting, characters with extra attacks/turn equal to their pairs (for instance with 2 extra arms you get 1 extra attack, with 4 you get 2 extra attacks), these secondary attacks each have a -2 Damage Penalty and -2 Penalty to the Attack Roll. 1/2 Power Points