It's like pacman, but with pirates. taaa daaaa! *waits for applause*. So there u have it, it's a piratey new fangled version of the old game. U must grab up all the gold coins, while avoiding the evil pirates that have swords... swords that are sharp... swords that will cut u.
Look out for traps and other nasty things that will killz u. Also, try to grab the sword thingie - it turns the pirates chicken and u can chop them up instead.