"Swapper" is the forty-second episode of Lilo & Stitch: The Series. It aired on November 19, 2004.
Lilo meets a new friend named Victoria who also joins Lilo's hula class. However, Mertle will stop at nothing to try and befriend her so that she will not be Lilo's friend. Lilo then attempts to prove that she's normal by throwing a "Lilo's Not Weird" party. However, an experiment that switches people's minds appears, resulting in Lilo, Stitch, Jumba and Pleakley swapping bodies. From Stitch's body, Lilo must make sure the party is successful while Stitch has to pretend to be her, but nothing goes as planned, especially when Hämsterviel (who has switched bodies with Gantu) arrives. Eventually, Swapper is defeated and Victoria reveals that she likes weird and becomes Lilo's new best friend (and first human friend).
- Moral: Be yourself.
- This episode marks the first appearance of Victoria, who is currently Lilo's only human friend.
- Lilo revealed that her favorite color is orange and her least favorite is pink, which we learn is also Victoria's least favorite color.
- This is the only episode where Reuben has no speaking lines.
- Body swapping is a common trope seen in various films and TV series.
- Gantu is revealed to be allergic to Hämsterviel's dandruff while the former was in the latter's body.
- Lilo with Stitch's mind hurt her fist after punching Swapper's container. Ironically, Stitch was still able to roll into a ball in Lilo's body, which would have seriously broken her spine.
- According to Jumba, Swapper once swapped the former and his wife for an entire month.
- It is unknown whether or not Swapper switched Gantu and Hämsterviel's minds back after being threatened with Pleakley's nasty cuisine. Since they were back to normal in the next episode, it is safe to assume he did.