These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Breather Level: The Killer Vegetables HQ is quite comfortable after all the stuff in Doc's Cave.
YMMV, at least in the special edition where both are darker and edgier.
Broken Base: There are those who played the Retail PC or N64 version, and those who played the Beta/Special Edition (PC only). Most people who played one version of Tonic Trouble as a kid have only learned of the other version thanks to the internet. The divided base is mostly a case of Nostalgia Filter.