I know this is an old thread but I have the game in a zip file and have uploaded it into my Dropbox...
https://dl.dropboxusercontent.com/u/...4/PibbGame.zip
Not sure if that's proper procedure for uploading games but know this is one that's kinda hard to find. I used to play this one myself back in '99 on a soundless 486 laptop when my mom brought the 3.5" disk home one day after getting some McDonald's.
Anyways, enjoy!