Everyone hated E.T. for atari 2600 as it led to the video game crash of 1983.
Why E.T. is bad:
Rushed Development=Worse Game and Less Testing time
Bad Graphics
Keep on falling in random pits that are difficult to get out of
and more
I saw it on Guinness book of world records 2012 gamers edition on the gaming fail section. Much worse than E.T. indeed. E.T. is also in gaming fail as well.
There was one game where you start with a bird in a box. Pressing any button other than the joystick crashes the game, and when you move, you go around in circles. There is no goal and the game is pointless.