If I understood right you want to crack the game so your buddies can see if they like it? As they weren't enough gameplay videos on youtube. Anyway I won't start a debate about your abilities to buy games you like or if it's alright to crack games for testing. Thing is it violates the ToS
here either way so yeah, we can't help you even if you want to crack it yourself rather then finding some copy/paste cracks or whatever.