AbeX300, don’t tell people not to give you an answer if they don’t know the answer, and then complain when you don’t get an answer within a day. Stop being a dick. The Shrykull power will have come from the use of a trainer. Search the Forums for more information or, if you’re feeling adventurous, just download these and mess around with them:
http://oddworld.modifikace.com/editors/exoddus/