Up to 12 party goers can join in the festivities as they whack, roll, splash, pop, scribble, climb, jump, and shimmy their way through more than 20 birthday games, including Pin The Tail On The Donkey, Sack Race, Musical Chairs and Cake Stacker. The birthday boy or girl can also choose from ten party theme rooms to set the scene for an unforgettable bash, from "Pirates," complete with sword and treasure chest, to "Princess," with a royal castle, a fancy crown and unicorn. When it's time to break for cake, a lively rendition of the traditional "Happy Birthday" song will play for everyone to sing along in karaoke-style, with a virtual cake on screen.