Okay, I liked the Solid Snake sketch, mainly because Solid Snake likes boxes. I originally thought the impression was a little lackluster (I'm used to Graham's..) but really? You convinced me! I was firmly convinced you were actually Snake. Good job!
The invisible Mario block was.. Nice for a bit of a giggle.
Then you completely lost me in the "Gamesterbation: Game game game gAmE GAME GAMES".. Thing.. Jessica Chobot is certainly not THAT boring in the IGN Spotlight's (and yes, I could tell that was a parody of it instantly). Hell, they don't even say "game" much in that show. Nor is it a good 30 seconds or more of black screen and dull border. Yay.. So I skipped through that rapidly to save my sanity.