Just to throw in my 2% of a $, Low-Altitude Attack Zeppelin isn’t a bad game so much as a broken one. The difficulty is as such that getting past the first 5 seconds is literally impossible. It doesn’t take the player very long to figure out that fact and move on.
Bad games are the ones that let you keep playing after fighting an uphill battle of attrition against yourself to gain nothing in return other than one more hill. If you wanted to make it a truly bad game, I would give the zep full range of motion, but make the planes come at random times/places and shoot-able. Making the player rely on luck to be in the right place to shoot them or have to restart the level. Even more evil would be to add a (hopefully fake) token system to buy continues/lives/extra hp that comes up when you die. And of course, to get tokens, you have to pay.
I guess after all that, you could add a leader board that connects to facebook with a “Invite your friends!” button and daily scrap giveaway… And well, that pretty much describes every freemium game I have ever played.
Now if only there was a way to get superman in a virtual reality setup in there flying through rings as well.