This event happens every year at the start of December until mid-January. It is a chance to egg the three original Credit Shop eggs. If you buy 300+ Cash Points, you will have a 50% chance to receive one of the retired egg. If you buy 500+ Cash Points, you will get a random retired egg. If you buy 1,000+ Cash Points, you will receive one of each retired egg. The three original Credit Shop eggs are: Kioka, Omni and Liyure.