Part 2 ... eventually.

Also music :

Ren & Stimpy - Valse Moderne
Poker Night at the Inventory - Sam & Max's Office
MLP BGM - Stampede
Ren & Stimpy - Workaday World
Duke Nukem Theme - Megadeth
Portal 2 - He's Playing Classical Music
Quake 2 OST - Kill ratio
Megadeth - The Killing Road