Most Obnoxious Levels in Gaming

[Vipershark]

Not only that, but because the thing actually MOVES when you jump, common sense tells you "oh, I'm supposed to jump repeatedly to get this out of the way, okay."
That, combined with the fact that there is NOTHING else in the game you have to actually use the up button for outside of menus (looking up doesn't count, I'm talking interacting with stuff), it simply didn't cross anyone's mind to ever press it.
Bad level design at its purest.