What first made Shape Shifter so alluring to me back in '92 were its apparent similarities, visually and conceptually, to The Legendary Axe, one of my favorite TG-16 titles. Screenshots showed a barbarian fellow wielding a battle axe as he fought off giant spiders and the like in forests and caverns. I figured SS would take the excellent basics of LA and place them in a Simon's Quest-type adventure setting. I was right in my assessment, and the quest lived up to my expectations.
(If you find yourself struggling with any aspect of the quest, you can refer to the walkthrough I wrote.)