I used base game, seasons, spa day, spooky stuff, the plant kit, and Holiday stuff. I realized after the fact that I had used city living floors but couldnt bring myself to delet it so its a fail. Lol The Rules: You can add walls but I MUST be able to see the cake shape. You have to use the bear and candles somewhere - they can be sized down. You MAY ONLY use Basegame, 1 Expansion Pack, 1 Game Pack, 1 Stuff Pack and 1 Kit. Have fun and Happy Birthday to me!! lol #senseybdayshell