- Lilo & Stitch: "what if... Stitches claws had an unexpected effect" (Movie Stitch Has a Glitch)
the day after Lilo brings Stitch back to life and her hula dance, Lilo breaks out in hard sweats and cramps all over her body, Jumba checks her with his equipment and finds that her D.N.A is being altered by foreign genetic strands, after comparing it to what he has on file he finds the only match is Experiment 626 "Stitch", his own creation, he asks Stitch how this could have happened and after a moment the little guy realises it was from the scratch when he glitched out.
after explaining what happened Jumba does some more tests, later on he explains that Lilo is in no danger but due to the unforeseen effects of Stitches claws she is being infused with the same D.N.A as his experiments, this would give her similar powers to Stitch but different due to her human origins, after a few nights of Lilo going through intense fever and pains she wakes up feeling better.
they run some more tests and find she has an extra set of arms she can pull out like Stitch, the same strength and indestructibility as his own, being able to see different aspects like inferred and night vision, super hearing, increased intelligence, can climb on walls and even grow fur on her body for different climates, she spends a week training with both Stitch and Jumba before going back to school, claiming she caught a bug after her hula dance.