I remember playing a Sesame Street game on the NES as a kid, "hide and speak" I believe it was; it had some kind of digitized voice. One time I used the wrong power adapter for the system, and results were horrifyingly similar.
Oddly enough, this draws my attention to the things that AREN'T corrupted, like the balloons. They don't fly up, they don't fall down, they aren't tied to anything; what's their deal?