Elline, a spritely little paintbrush, recruits Kirby to bring back the colors and help her friend. It's cute, and gives a nice world-building rationale behind the rainbow paths you draw for Kirby ...

Elline frees Kirby and Waddle Dee from their frozen state, and the three team up to stop Claycia and restore Dream Land. Kirby's end of the deal has him rolled up in a ball, constantly moving forward.