Chessn't

So, the story goes like this:

One day, my good friend wakes up and in what's comparable to drunken stupor stutters:

You play chess with a random enemy but movement style for each piece is randomized, enemy makes randomized moves and they claim they are master pf chess
If you win, the enemy gives you crab legs

And tell me what friend would I be if I didn't made her dreams come true?

So there you go, fight the alien, get that... Crab legs?

I need a nap...