Utaco was originally an entry for A Game By Its Cover (http://www.agbic.com/).
The contest idea was to choose a fake cartridge art (with an special focus on Famicompo entries) and then develop that game in a month.
One of those entries, was うたいたガールUTACO~「ＩＩコンは世界を救う？！」 (http://famicase.com/11/softs/41.html) by ふじのきともこ
The main idea of a game played with the almost never used Famicom microphone seemed fun enough for me to try to do, so that is how I choose it.
The game was not finished when the competition ended, but with some work on the following months, it reached its actual status.
The game features music by Surasshu, so go and give thanks to him later when you can’t get the tunes out of your head.
The archive includes the ROM, Source Code and a pseudo-booklet.
Gamer24h Editor's Take
うたいたガールUTACO~「ＩＩコンは世界を救う？！」 caught our attention with its unique design and has shaped up to be a must-play masterpiece candidate thanks to the depth of its experience. Developer zurashu has done a remarkable job of drawing players into its world, earning our admiration with its attention to detail. In short, an outstanding and immersive gaming experience awaits genre fans — we highly recommend giving it a shot!