Form:Goofy

While he retains his typical appearance in most worlds, in certain worlds Goofy's appearance is altered by Donald's magic in order to allow himself to blend in with the inhabitants of those worlds. Goofy's animal forms are based on turtles and tortoises, playing on his Defender-like role.

Atlantica version
In both Kingdom Hearts and Kingdom Hearts II, Goofy takes on the form of a sea turtle while in Atlantica. In this form, he is able to fight with his shield attached to his back.

Halloween Town version
When Goofy visits Halloween Town in Kingdom Hearts, Kingdom Hearts Re:Chain of Memories, and Kingdom Hearts II, he assumes the form of a Frankenstein's monster. In Kingdom Hearts II Final Mix, Goofy instead takes on the "Christmas Town version" while in that portion of the world. This form has no mechanical differences from his normal state.

In his Frankenstein Form, Goofy's appearance resembles the stereotypical depiction of Frankenstein's monster. He wears a tan turtleneck sweater, a yellow, tattered, patched jacket, green pants that are equally tattered and patched, with a black left leg, black suspenders, and brown shoes with holes ripped open for his toes. All of his clothing is faded. Goofy retains his floppy ears, but they are thinner and mangier-looking than normal. He has an enormous, silver screw in the top of his head and his fingernails are pointed. His fur is black and is spiked wildly on his head around the screw. Goofy's nose becomes a metal cap and is tipped with a small jack o' lantern, similar to Zero. His eyes are heterochromatic; the left one is red and the right one is a grey spiral. Goofy's weapons gain a darker, ashen appearance in this form.

Christmas Town version
While in Christmas Town, Goofy takes on a reindeer-like form. In this form, he wears festive red-and-green mittens, a matching belt, and a sweater-vest that is a Santa-version of his normal jacket. His body is modified to look like a reindder, with a blinking nose like, antlers that curve into a heart, and reindeer hooves. This form only appears in Kingdom Hearts II Final Mix.

Timeless River version
While in Timeless River, Goofy takes on an form that matches his appearance in early Disney cartoons.

Pride Lands version
While in the Pride Lands, Goofy takes on a Tortoise Form. In this form, he runs by spinning in his shell.

Space Paranoids version
While in Space Paranoids, Goofy takes on his data form, wearing cybernetic armor like Tron.

In his Data Form, Goofy's clothing is replaced by grey, robotic armor covered in glowing, cyan computer circuitry. His fur remains black, but his skin becomes a faint shade of blue. Goofy’s weapons are also covered in circuitry in this form.