In the Japanese version of Kirby's Dream Land 2, the female Gooey's role is instead filled by a little human girl named Chao. She was the star of the Japan-only Famicom Disk System text adventure game Yūyūki. The image seen on the Sound Test screen is a recreation of a scene from Yūyūki. Chao appears in Kirby's Dream Land 3 as well, now with another character from Yūyūki, Goku.
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