The sound the life-size gingerbread man make in the beginning of the episode is that of a killed enemy in Doom (1993).
While Alton discusses ginger's reputed ability to relieve the nausea of motion sickness and offers a demonstration of a device designed to induce such symptoms (lovingly called the "Vomitron"), he fails to mention - and only revealed in one of his books - that the ginger he had eaten didn't make any difference and that he barely made it out before he hurled.