Part 4 is the mod edition! Seriously, download all the most funny looking mods you can find, and then play through the game as normal. It's hilarious yet disturbing.
Here's a list of mods used in this video (not in order):
Arrows Stick - Steam Workshop
Bigger Giants - Steam Workshop
Bloodier Combat - Steam Workshop
Caerbannog (Monty Python Rabbit) - Steam Workshop
Herman the Mad - Steam Workshop
Megusta Moon - Steam Workshop
No Spiders (Spiderman Edition) - Steam Workshop
Fall of the Space Core - Steam Workshop
Posh Mudcrabs - Steam Workshop
Project P.E.W. - Steam Workshop
Rabbit Rage - Steam Workshop
Macho Dragon - skyrimnexus
A Trolling Troll - skyrimnexus
WereChair (only sound) - skyrimnexus
fucking enjoy.