When the Goofs are having Christmas dinner with their neighbors, after dinner, as Goofy picks up the scraps from the turkey, there is suddenly another turkey on the table.
In the second story (Goofy and Max's story) Max stays up all night with numerous shots of his alarm clock. The next to last time you see the clock it is 4:39 AM and the very next time you see it the clock reads 3:00 AM.
In the "Have Yourself a Goofy Christmas" segment, Pete is colored brown instead of his usual black. However in the following segment "Gift of the Magi," Pete has his correct colors.
The calendar in Donald's nephews' room goes backwards. Below the page that marks the 25th is the one that marks the 24th, instead of the 26th as it should be.
After Huey, Dewey and Louie first throw the card with their sleighs, it lands on Donald. The Christmas tree on the card is upright but the card opens to the right, not left. The tree should be upside down.