Ok I've played them both now,
Zeppelin is pretty awesome, can't believe I haven't played this more. Very satisfying annihilating everything

Managed to beat the first level (7) for the first time ever, took a while to play though. I guess you are escaping from somewhere as it then went to level 6 and got seriously nasty. Must read the instructions to check whether we're meant to be a goodie or a baddie, if the former I'm sorry folks in those cities, maybe you should have gone for the stronger protective domes
Hint: If you get hit, use the few seconds of 'invincible time' to get across the screen to safety. If you wish you can play on 3 player then stick 1 on an XE becomes sticks 1 and 3 and you can fire as you move, it also fires at a different rate - but I don't think this is necessarily an advantage!
If you've not done so be sure to check out the artwork on the box and adverts on
atarimania
SPOILER ALERT: You get the burger thing and take it to the big door, then get the TNT and take it to near the plunger and kaboom!
Gorf, nice quick blast. Play on any level, game progresses through them anyway, after Lv24 goes back to Lv1 but stays difficult.
Hint: Shoot the flagship fragments for more points.
BONUS POINT CHALLENGE:
The person who most savages the flag ship (every 4th screen) will get a bonus point. You'll have to pause (space) to grab a picture when you have made a decent effort, it must be taken alive! Here's an example:
My scores: