also, during the era of the first console ever (the Magnavox Odyssey, which used jumper cartridges with no ROM at all), the designer (Ralph Baer) had an idea that, if it had caught on enough to seem patentable, could have meant a financial death knell to nearly all ROM cartridge systems that came later on in the second generation and prevented such marvels as the DS and SNES from ever existing.
Here's a question though: Why was this done in black-and-white instead of SGB or GBC color mode?
Re #7: Super Mario world has an any% TAS. And the 2-player idea has been tossed around but ultimately there is no difference between the characters, and the added fadeout for character switches, and extra character movemement in the overworld would only make things slower. (even if going for 100%)
I would prefer the wheel, i think, if it was attached to something, not just floating free hand. With nothing to push against, I feel I have no control over the turning and such.