

In Kirby's Dream Buffet, Keeby appears on the "Kirby & Keeby" Character Treat, and the name "Keeby Yellow" is used for the yellow color for Kirby. Later, the Kirby's Dream Collection Special Edition booklet mentioned Keeby again, revealing the nickname to English speakers for the first time. This was the first time this nickname was made public.
for the Nintendo 64, Masahiro Sakurai referred to Kirby's yellow palette swap in said game as "Keeby", and mentioned that it comes from Kirby's Dream Course. On the official website for Super Smash Bros. Supplementary material, such as the instruction manual, simply refers to him as a yellow Kirby. Keeby was initially only used internally as a nickname by the developers of Kirby's Dream Course it is a portmanteau of Kirby's name with the Japanese word for "yellow", kīro. It has been speculated that these yellow Kirbys are actually Keeby, but no official source has stated that to be the case. Officially, Keeby only appears in Kirby's Dream Course, but generic yellow Kirbys have made appearances in multiple other games in the Kirby series.
