Also notable for what is quite possibly the coolest fourth-wall breach in video-game history.
I'll just put it this way: do not meet him unless you have the Dual Shock (or some other force-feedback pad) plugged in. Trust me on this. The cut scene uses the force-feedback motor in a way that I very much doubt has been done in any game before or since.
You might also want to have a few other Konami games saved on your memcard, as well...
See also: controller massage