No seriously, the smarmy voice and vocal fry is meant to be annoying -- it's spot-on parody of geeky video game tutorials. And it's well worth pausing and reading the hilarious dialog in the chat logs! But be careful not to accidentally open up your Space Inventory.
I like "World Quester 2" the best, and I recently showed "Pretend Gas Station" to Will Wright:
https://www.youtube.com/watch?v=0Gy9hJauXns&list=PLCD3AF7C1B...
(Edit: That's a playlist with all of them, from long ago. I really wish they would review some new games now, there are so many ripe for parody!)