Bonzi Buddy is just a mega fancy Spy-ware program.
Your best bet to clearing this disaster, is to go to download.com and search for a program called Ad-Aware, or just search for programs that'll detect Spy-ware.
They'll run a scan of your computer, and find all the rubbish you don't need.
I remember when Audio Galaxy was around, they MADE you install Gator. It almost killed my PC, the beast ate up over 40% of my system resources while it was sending info all over the net -_-