Birthday Mania

"Birthday Mania" allows players to play mini games consisting of popping balloons and blowing out candles. It also comes in a box that allows you to personalize it with a birthday message or name.

The reason for Birthday Mania's rarity is because the only way to purchase it was by magazine order. With only one verified copy in existence, "Birthday Mania" is one of the rarest games of all time.