Wow, I had no idea that scene was real. I knew about the other two, but I thought Betty Boop's nipples were just an urban legend. Apparently I was wrong.
Does the "For a good time, call Allison Wonderland" graffiti in the Toontown bathroom have that alleged one-frame subliminal phone number? Supposedly, it was Michael Eisner's phone number, but even if it wasn't, I'm assuming it was removed because it was a real number (like the 1-800-SPANK-ME dialogue that has been expunged from The Santa Clause since the late 90s).