That's a bold claim, given how many horrifying Alien toys were marketed to little kids. But this Kenner 18" figure is both close to H.R. Giger's original vision and blatantly horrific, with the skull-face and everything. Hard to believe this was marketed to little kids.
This nightmarish beauty is displayed over at the Vintage Kenner Star Wars blog, where they write:
Alien ... really wasn't "toyetic" in the way that Star Wars was, but nevertheless Kenner obtained a licence for the property and produced one toy - a large-size (18") action figure. While not popular in its day, the toy itself has become iconic among Alien collectors and toy fans for its audacity - a figure for kids, based on an R-rated movie that kids weren't allowed to see, in a scale that no other toy used, absolutely faithful to the hideous visions of a weird Swiss artist, of a character that exuded a sheer otherworldly horror. A natural fit for the toy aisle!...
The figure is remarkably faithful to Giger's vision. I'm still shocked that Kenner execs actually cleared the toy for production and thought it might sell. What parent would buy this for their 8-year old?!?!
The fact that it glows in the dark is the clincher. Imagine a little kid waking up in the middle of the night and seeing that staring at him or her. Check out a few more images below, and tons more over at the Vintage Kenner Star Wars blog.