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.
YMMV: The Mad Doctor
Complete Monster: The titular Doctor naturally who intends to places Pluto's head to the body of a chicken to see if when he lays an egg, the result will be. He's basically like Dr Heiterin toon version.
I Am Not Shazam: His name is Dr. XXX, not "the Mad Doctor". This isn't helped by the fact that Epic Mickey calls him the latter rather than the former.
Mickey Mania made this mistake even earlier by having Mickey's voice clip call him the Mad Doctor, though given its context, it could have simply been referring to the short/level itself.
Epic Mickey goes so far as to have Dr. XXX yell at Mickey to, "Get it right!" during his boss fight.
Vindicated by History: While the short was apparently shunned in its initial release, it has retroactively become one of the most popular Mickey Mouse shorts, to where the villain not only reappeared in Mickey Mania, but was given a prominent role in both of the Epic Mickey games.