Gold Beanbon is a rare and special Beanbon appearing only in Kirby Mass Attack. It resembles a regular Beanbon in every way, other than the fact that it is gold in color.
Gold Beanbon only appears in Stage 4 of Green Grounds and does not attack the Kirbys, but it will try to run away from them and into its home. If the Kirbys KO it, they will complete the "Gold Grappler" challenge on the checklist, which has a series of other challenges that need to be cleared in order to beat 100% of the game. A Gold Waddle Dee appears in Stage 6 of Dedede Resort for the same purpose.