I got to the last boss in Fester's Quest, only to die one hit from defeating him.
I know this because we both died at the same time.
What was my reward you may ask? I was respawned to the starting point. And had to go through all the mazes and sewers all over again.
Suffice to say I was pissed, and kicked the power button. Since then I have never touched Fester's Quest, pissed on it sure, but never touched.