Wow, I'm actually the first person to post about the full riff. I was a big fan of the original as a child, so it was a given I'd be downloading this. Pretty good so far; I'm about halfway through but had to pause for a break. Favorite bits so far:
"Why does our family have three different accents?"
"How many rapes does a guy have to commit to get some respect?" (That's so wrong BTW)
"If proper names were allowed in Scrabble your name would be practically worthless" (Referring to Io).
I'm probably misquoting all three of these. Also, liked the Zangief reference, simply because I mained him in my Street Fighter 2 days.
On an unrelated note, the Rifftrax main page is currently giving a 404 error. Hope it's nothing serious.
EDIT: Never mind, I see that's been fixed.