I finally got around to picking up a copy of 7800 Asteroids this weekend on eBay. Been putting this off for months for no good reason, especially as it's one of the games I used to play the heck out of when I was a kid. (And it's my favorite version of the game, too.)
It arrived today, all working and lovely. But there was something curious about it. Where on any 7800 cart I've ever seen one would find the exposed end of the PCB, I found a cover like one would find over old 2600 games. The slit that the PCB edge would slide through is exposed and I can see the board when the cover is...well, covering. And the cover itself responds to being pushed in simply by pressing it with a finger.
I've never seen one of these before and just wondered if anyone could give me a little information on this configuration of 7800 cartridge. When I turned it over in my hand and found this staring back at me, I was a little baffled. Thanks!