Fallen AT-AT Poster - questionable origin - Lucasfilm games 1995 maybe?

Hey Guys - I have a poster that I don't really know the origins of. the only info i have found is that it is a lucasfilms games poster maybe from 1995. I bought it and then had it mounted and framed- lost my job, so i ay try to sale it at some point despite how awesome it is. any ideas as to the official source of this one?






here are some pics:

Looks like it failed trying to do the splits.

I can't say that I've ever seen that image before. The funky position of the front legs would stand out in my head if I had seen it anywhere, so I'm no help here. Awesome poster though!

looks like it is from the 92 nes nintendo video game ad campaign-