I can't find a screen cap or video clip of this scene for this VERY specific question, so bear with me. I was hoping perhaps someone had seen a "making of" the 1990 Teenage Mutant Ninja Turtle movie and might have more info.
The very first time you see the Foot Clan's lair, they have several shots to show how bad-ass everything is - an underage kid smoking (wow, try showing that these days), and most importantly, a wicked looking arcade game some kids were crowded around.
The game on the screen only showed for a few seconds. It seemed to be done with stop motion animation, but the creatures on screen did seem to move around as if they were 2D video game sprites (though I might be wrong). It featured a wicked looking giger-esque creature that was a human skull on the end of a black tubing, and its body was some kind of tank on wheels. It was moving around the screen, the head was writhing up and down on the long pipe neck, and it was eating other creatures on the ground in front of it.
Seeing this always made me wonder if this was a real arcade game or if it was specifically made-up for the scene, as it added a lot to the impression of the Foot Clan lair as some mythical place where kids could live out their fantasies. Of course, it could've been a completely made up game, like the arcade game graphics in The Last Starfighter, but I was thinking about it and it wouldn't be out of the question for it to be real, since we had Mortal Kombat back then, and that was done with digitised photos too, in the same way this game could have been done. And the gameplay was feasible, it seemed to play like Double Dragon, moving around on a play field with a pseduo-3D perspective.
Even if it's not a real game, it would be awesome to know more about the development behind the creation of that fake game sequence, outside of the obvious conclusion that it was all a simple stop motion animated sequence, i.e. if there is any behind the scenes footage or information, or even the name/company of the artists behind the effect.