Yeah, glitching out your games is good fun. :^) I used to be able to hold down a certain combo of buttons on my Speak and Spell and completely wig it out.
"Spell (Random syllable noises that sounds like KDHJFKJFKGGJUKIGKKRKH)"
Then you'd try to spell it.
"No. That is incorrect. The correct spelling of KDHJFKJFKGGJUKIGKKRKH is *BRZZZZZZZZZZZZZZZZZ*."
It was like the Speak and Spell was posessed by a demon. :^)