G.I. Joe (1990)

After Metal-Head sings and when he arrives at Cobra HQ with the damaged Overkill in a wheelbarrow, he loses his mustache.

Riddle #2:
Q: What kinds of beans do cannibals like?
A: Human beings.

Riddle #1:
Q: What goes dot dot croak, croak dot croak, croak, croak, dot, dot?
A: A Morse Toad!

Goof:
How come nobody else on the reunion boat realises what's going on? The boat sinks and nearby a heavy war takes place, but nobody reacts on any of these events...

Goof:
How come granny got to speak on that altered disk, since she was nowhere near the room where the disk was overwritten?

Metal-Head was the high school football mascot back in his time.

Goof: The ASP reveals Grunt's name: Robert W. Graves. But this person was lost in another world in the Original G.I. Joe series.
Maybe it just was because Grunt's action figure was re-released in 1991.

Cobra Commander always wears a hidden radio in his boots.

The place of the peace conference is named as Conference City in the Swiss Alps. In fact there's a city, where every year is teh big World Economic Meeting (the biggest meeting for people from politics and economy in the world). This city is located in the high mountains and is called Davos.

In this episode the Joes last line isn't Yo Joe!, they end with Peace.

Altitude's file card shows that he used to work in animation until his budding career was shortened by the collapse of syndicated cartoon programming.

The two movie the Joes watch are:
1. Road Trip to Gorky
2. Road Trip to Beirut

The letter of Congress reads:
In conclusion, because the cost of GI Joe's jungle expedition totaled the outrageous eight million, nine hundred and eighty-four thousand, eight hundred ninety-nine dollars and fifty-two cents, the U.S. Senate has ordered you to report to the Battle World proving ground to learn to fight in a cost-efficient manner. Signed, Dr. Deborah Carday. Counter-signed by the Joint Chiefs of Staff.

Goof:
Fact would be: The President can recommend people for positions like Secretary of Defense and Attorney General but, Congress gets the final say.

The news headline reads:
GI Joe Hiss-tory now that Serpent Man is here!

When the Joes finally reach their vehicles, before they can board them Cobra takes out the Locusts and Retaliator Choppers, they say they've lost their air attack. But Avalanche tanks still have attack pods that are flight capable.

The answer Cobra Commander gets (it simply doesn't make any sense, so you can consider this as goof):
We are sorry, but our president is on vacation and we are unable to surrender in his absence.
Your idle threat interrupted "Bowling for Dollars" please see that it doesn't happen again.

Voice-over explaining the location:
Across the blue Pacific, far from the hustle and bustle of civilization, lies the beautiful island of Volcania. Sparkling beaches, waving palms, ancient ruins a dormant volcano and GI Joe's rest and recreation base, better known as Club Joe. Activities include tennis, archery, swimming and fishing.