This song is odd, but I'm pretty sure this is close. I know there is a hammer or pulloff with a few notes on the main part but this is just a simplified version, rate so i know how i did, and enjoy.

Main
-------------
0--0---------
-2--2-0-2----
----------222

Chorus
"He cannot digest the lactose..." and after second verse when chad chants "ahhhhhh"
---------0----
-------0---0--
-----2-------2
222-----------

Ending
-------------------------
-------------------------
-------------------------
0x50---5x50---0x50---5x50

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