Because the number 4 is considered unlucky in Japanese culture, MomoCon 2008 (the 4th event) featured a gothic horror-style theme. In addition to several events from past years, 2008's event included a Twilight Tea event, at the end of the day on Sunday, in lieu of a closing ceremony. Con-goers were asked to stop by for some fresh-brewed tea under the light of red paper lanterns at dusk and let the staff know what they would like to see at the event in the future. Due to the security problem in 2007, subsequent MomoCon events (starting with 2008) have required registration to enter. Attendees were required to present a valid photo ID to enter, and children under the age of 16 needed to be accompanied by an adult. Badges were provided, and the event remained free for congoers.