
A 2002 Sega-developed PS1 obscurity released only in Japan has just gotten an English translation two decades later, and more than anything it serves as the gateway to an incredible selection of trivia about turn-of-the-century Japanese pop culture.
That game is Mini-Moni. Shakatto Tambourine! da Pyon!, and as the one English word in the title implies, this is a rhythm game that optionally allows you to play using a custom tambourine controller. The track list is largely dominated by the work of the titular J-pop idol group Mini-Moni, who are likely most notable for their regular appearances in '00s Hamtaro anime films, where they appeared in hamster form as the Mini-hams.