昔うごメモで誰かがローリンガールにのせて、ポケモンのプリンが転がるアニメーションを投稿してたんです。それを何回も見てたのが最初に聞いたボカロだったと思います〜。

A long time ago, someone made Rolling Girl in Flipnote Studio. It was an upload with an animation of Pokemon's Jigglypuff rolling. No how many times I saw it, I think it was the first time I heard Vocaloids.