Quick and dirty:

Goofy's Concern [or whatever it's called]

Chords:

A5      F5      E5      C5      B5
|---|  |---|   |---|   |---|   |---|   
|---|  |---|   |---|   |---|   |---|   
|---|  |-10|   |-9-|   |---|   |---|   
|-7-|  |-10|   |-7-|   |-10|   |-9-|   
|-7-|  |-8-|   |-7-|   |-10|   |-7-|   
|-5-|  |---|   |---|   |-8-|   |-7-|   
|

The intro is an E with the 6th string [lowest pitch] open, and the next 
two [A, D] fretted on the seconf. Hit that 3 times, hit the 6th string on 
the 3rd fret [G], and then the E again.


The "chorus" of sorts is like this:
(Note: for the rest of this transcription, I probably have the number of 
times you hit each chord worng. Just strum as fast as you can with only 
down-strokes and change chords when your fingers cramp.]

A5 A5 A5 F5 F5 F5 F5(E5) E5 E5 C5 C5 C5 E5 E5 E5 E5 E5 E5 E5 E5 A5 A5 A5 A5
C5 C5 C5 C5(B5) B5 E5 E5 E5 A5 A5 A5 

The "verse" [part where he sings] :
A5 A5 A5 A5 3 times  C5 C5 C5 C5

The bridge is this cord:
some kind of mutant A:
|---|
|---|
|-4-|
|-5-|
|-5-|
|---|

strummed a few times, and then dropped down two steps. Do this a few times.
[You're going to have to listen to it to see what I mean]

Then play an E like in the intro [without doing the G thing]
In between the E's, do the single-note lines by just making them up.

WHO WAS IN MY ROOM LAST NIGHT?

I learned this off of a friend's cousin's dentist who got it from Guitar 
for the Practicing Musician which he stocks in his waiting room. He's 
from Seattle.

Drop down strings 1 whole step: [or drop just Low-E string down to D, and 
play Rhythm 2 down 1 whole step from what it is listed here]

Rhythm 1: [one bar, all eight notes]
|-----------------|
|-----------------|
|-----------------|
|-----------------|
|-----------------|
|-0-0-3-5-3-0-0-0-|  play many times

Rhythm 2:
|----------|            |-----------------|
|----------|            |-----------------|
|----------|            |-----------------|
|-7-9--7-9-|            |-----5-7-5-------|
|-5-7--5-7-| twice then |-5-7-------7-5-7-|
|----------|            |-----------------|