Here it is...
(You might tune down half a step I'm not sure)
|------------------------|--------------------------------
|------------------------|--------------------------------
|------------------------|--------------------------------
|-7-7--5-5--4-4--3-3-2-2-|-7-7--5-5--4-4--3-3-3-3-2-2-2-2-
|-7-7--5-5--4-4--3-3-2-2-|-7-7--5-5--4-4--3-3-3-3-2-2-2-2-
|-5-5--3-3--2-2--1-1-0-0-|-5-5--3-3--2-2--1-1-1-1-0-0-0-0-
Chorus thingy (Part 1) I guess... 2x
|-----------------------------------------------------------
|-----------------------------------------------------------
|-----------------------------------------------------------
|-7-7--X-X-X-X--5-5--X-X-X-X--4-4--X-X-X-X--3-3-3-3-2-2-2-2-
|-7-7--X-X-X-X--5-5--X-X-X-X--4-4--X-X-X-X--3-3-3-3-2-2-2-2-
|-5-5-----------7-7-----------2-2-----------1-1-1-1-0-0-0-0-
Back to this several times
|------------------------|--------------------------------
|------------------------|--------------------------------
|------------------------|--------------------------------
|-7-7--5-5--4-4--3-3-2-2-|-7-7--5-5--4-4--3-3-3-3-2-2-2-2-
|-7-7--5-5--4-4--3-3-2-2-|-7-7--5-5--4-4--3-3-3-3-2-2-2-2-
|-5-5--3-3--2-2--1-1-0-0-|-5-5--3-3--2-2--1-1-1-1-0-0-0-0-
[ Tab from: https://www.guitartabs.cc/tabs/g/green_day/brain_stew_tab_ver_12.html ]
Chorus thingy (Part 2) I guess... 2x
|-----------------------------------------------------------
|-----------------------------------------------------------
|-----5-5-7-7-------5-5-7-7-------5-5-7-7-------------------
|-7-7-5-5-7-7--5-5--5-5-7-7--4-4--5-5-7-7--3-3-3-3-2-2-2-2-
|-7-7----------5-5-----------4-4-----------3-3-3-3-2-2-2-2-
|-5-5----------7-7-----------2-2-----------1-1-1-1-0-0-0-0-
Back to this several times
|------------------------|--------------------------------
|------------------------|--------------------------------
|------------------------|--------------------------------
|-7-7--5-5--4-4--3-3-2-2-|-7-7--5-5--4-4--3-3-3-3-2-2-2-2-
|-7-7--5-5--4-4--3-3-2-2-|-7-7--5-5--4-4--3-3-3-3-2-2-2-2-
|-5-5--3-3--2-2--1-1-0-0-|-5-5--3-3--2-2--1-1-1-1-0-0-0-0-
Outro Part 1 several times
|--------------------------------------------------
|--------------------------------------------------
|-7-7-7--7-7-5-5-5--5-5-4-4-4--4-4-3-3-3-3-2-2-2-2-
|-7-7-7--7-7-5-5-5--5-5-4-4-4--4-4-3-3-3-3-2-2-2-2-
|-5-5-5--5-5-3-3-3--3-3-2-2-2--2-2-1-1-1-1-0-0-0-0-
Outro Part 2 (Cont'd) (Several times after First outro part
|----------------------------------------------
|----------------------------------------------
|----------------------------------------------
|-7-7--7-7-5-5--5-5-4-4-4--4-4-3-3-3-3-2-2-2-2-
|-7-7--7-7-5-5--5-5-4-4-4--4-4-3-3-3-3-2-2-2-2-
|-5-5--5-5-3-3--3-3-2-2-2--2-2-1-1-1-1-0-0-0-0-
Ends with
|-----
|-----
|-----
|-7-7-
|-7-7-
|-5-5- Let it ring
Well that's it pretty easy song... My version may not be right but I like it.
I don't know how many times you play the riffs but you can listen to the song
and figure it out.
PaYcE OuT,
sNiZz