『プリティーリズムマイデコレインボーウェディング』 (Pretty Rhythm: My Deco Rainbow Wedding) is a Japan-exclusive rhythm game for the Nintendo 3DS developed by Takara Tomy and released in 2014. It is the third game in the Pretty Rhythm series, which follows the adventures of a group of aspiring fashion designers and their journey to become Prism Stars. The game features a wide variety of songs and costumes, as well as a unique 'My Deco' feature that allows players to customize their own characters. Players can also take part in the 'My Deco Rainbow Wedding' event, which allows them to create their own wedding and share it with their friends. The game also features a variety of mini-games, such as the 'Prism Show' and 'My Deco Rainbow Collection', as well as a variety of other activities. With its bright and colorful visuals, catchy songs, and fun mini-games, Pretty Rhythm: My Deco Rainbow Wedding is sure to please fans of the Pretty Rhythm series.