Heh, good old Atari...I remember playing Ikari Warriors on it and (in hindsight) expecting way too much depth from it compared to what was realistically expectable in that time and age.
I mean, I would try and beat the game on super-high difficulty etc, thinking that there must be some really cool stuff waiting for me at "the end" of the game.
Obviously, there wasn't.

The game just kept getting more and more ridiculously hard. I don't even think it HAD an ending.