Adventure Time Fluxx, as with all Fluxx card games, starts with one basic rule: Draw one card, play one card. You start with a hand of three cards, so add the card you drew to your hand, and then choose one card to play, following the directions written on your chosen card.
With Adventure Time Fluxx, you get to join Jake the dog and Finn the human for some ever-changing fun. Draw a card, play a card, and change the rules. Get Mathematical against Candy Zombies, visit the City of Thieves to steal from your friends, and maybe, if things work out just right, you might even get to Floop the Pig!
Unfortunately, there aren't many video reviews of Adventure Time Fluxx, but you can check out this review of the original Fluxx to get an idea of how the game plays!