Trick or treat
Appearance: Stitch's head is replaced with a jack-o'-lantern
Passive Effect: None.
Location: Found in the Pumpkin Forest.
Practical Uses: None.
Enter the green door to the Pumpkin Forest. Go north-west and interact with the jack-o'-lantern among the pumpkin patch.
Appearance: Stitch wears roller skater attire.
Passive Effect: Stitch's movement speed increases.
Location: Found in the Sinking City.
Practical Uses: Can be used to travel through the dream world faster.
Enter the purple door to the Sinking City. Go down and you should see a metal bridge forming a path across the water. Walk onto the bridge then go down the narrower path of the bridge to the other side. Interact with the roller skates beside the bench.