Although this video is in all good fun, on a serious business level, it's harrowing stuff for any Sonic fan to watch, but particularly for those who have known him since the glorious Mega Drive/Genesis days. The reference to Sonic 3 proves this.
And do I detect some Sonic fandom behind this video? I mean, they may have nailed Mario's accent (well, maybe if it were crossed with Barry White's) but it's Sonic who is the better characterised of the two. There's the use of the upward spindash, the loss of rings when he runs into a botnik and the 'lose a life' sound effect after Dr. Robotnik, who apparently owns the diner in this video (really?), is fired!
My only gripe about this video is Sonic reminding Mario that Sega ain't doing consoles anymore. This is a tired subject and Sonic would have absolutely no reason to mention it. Besides, it wasn't the discontinuing of consoles that made future Sonic titles suck. It was the forced transfer from 2D to 3D that made future Sonic titles suck.