And what about modern ones? Beside
Johan Vinet's Lunark, which is strongly reminiscent of Flashback, one could argue that
Limbo,
Inside or
The Swapper are the direct descendants of the genre. And in between, the 2D Oddworld games,
Abe's Oddyssey and
Abe's Exoddus are classic representatives, so is the often forgotten
Heart Of Darkness.
Same goes for your rules. Rotoscoping? Really? I doubt any technical approach could be part of a genre, but this one especially : it was only used for a brief period, when the artistic skills where unrefined and the CPU horsepower high enough to display high frame rate but too low to interpolate through states...
Rotoscoping was used in the early Disney movies, but this technique was totally forgotten once the 12 principles of animation were formulated. Same goes for rotoscoping in games : even Eric Chahi's next work after Another World, Heart Of Darkness, doesn't use it anymore.