Good gravy, you did it! I was thinking about this randomly the other day and remembered this post. Congrats on the end of your search (and consequently, mine)! Who would've thought it was a Mercer Mayer game...
Did you ever find this out? I suddenly had a flashback to playing the first game you describe, and your post is the only evidence I can find that this game even existed! For some reason I'm remembering the character you played as not having arms. Am I way off base?
We can do this!