A chocolate donut is a purchasable item in Quest 2: Race for Radopolis.
After crash-landing on Nowhere, the CyberSquad is annoyed by the local bartering system. Because the residents all find Buzz and Delete's stale donuts rare and valuable, they establish it as a commodity currency and the primary monetary system of the cybersite. Donuts are grouped onto sticks to help count large amounts. However, Nowhere is later shown to use Snelfus.
Hacker briefly let Buzz run a donut shop, dubbed Buzz's Donuts, in Radopolis as a front for a magnetite scheme. Buzz and Delete are seen making Buzzarian creams, a jelly-filled variety, on an assembly line. Digit orders five and gets them for free in honor of the celebration on the following day.