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TUBER IV - Speed Bridge

引用自 Cave Johnson | CEO, Aperture Laboratories：

If you haven't caught on yet, we're doling out these challenges in an alternating pattern between larger and smaller chambers. The designers weren't thrilled with how this "Speed Bridge" one turned out, but in my book, it's satisfactory. We've got deadlines, dammit! We do what we must because, frankly, it's all we can do.

引用自 ~Chariot_Champ~：

Anyway, the need for SPUDs came about when the National Potato Board threatened to pull their funding. Their stipulation? We had to rekindle the nation's interest in the field of potato sciences. You see, we used to rake in those prestigious Spirit of Idaho awards with our endorsements – this time it won't be so easy.