"Pretty Soldier Sailor Moon S: Quiz Showdown! Sailor Guardian Power" (美少女戦士セーラームーンSクイズタイケツ！セーラーパワー結集 / Bishoujo Senshi Seeraa Muun Suupaa Kuizutaiketsu! Seeraa Pawaa Kesshuu) is a video game released for the Playdia by Bandai in 1994.
Professor Tomoe creates a new Daimon named Quiz who attacks a girl named Asako Misaki for her Pure Heart Crystal. The Daimon then revives several enemies defeated in the past by the Sailor Senshi: Garoben, Murido, Oniwabandana, Haikyun, and Luax. The objective of the game is to defeat all the enemies and retrieve the Pure Heart Crystals that Quiz stole.