Many of stitch’s "cousins" are featured in this group photo taken at the end of leroy & stitch. the experiments, also referred to as stitch’s cousins, are genetically. The following is a list of episodes of lilo & stitch: the series, listed in order based on their original airdates. the show first aired on september 20, 2003, and. Brainmonster is, quite clearly, a brain-eating monster masquerading as a hat. it’s based on a hat that i saw on a livejournal knitting community, so i take no.