Rules are like in any Nibbles, eat the peas and get larger. The difference with any Nibbles, is that your worm can go any direction it wants, just by turning left/right, which feels much better. It looks great, plays great, and rules Nibbles!! You'll keep playing to beat the hiscore. And look at that size! One disadvantage: just one level. (That's why I'm continuing Scabby's project with Wormy btw, coming soon)