Boomer, A.K.A. Experiment 288, is an illegal genetic experiment created by Jumba Jookiba and a character in the Lilo & Stitch franchise. He is designed to be a living boomerang. His one true place is with Mrs. Hasagawa as one of her "cats".
Befriended from another series
Note: this is only a parody and most likely will never happen in real series
Outside of Lilo and Stitch series, his current 'ohana, and a new friend is Combo Panda (from Youtube series, Ryan's World and Combo Panda Channel). Details of his discovery was been posted by Combo thru his gaming blog site. He is currently indeed staying with Combo Panda as his personal weapon, and also as a gaming buddy.
Excerpt from Combo Panda's Blog
Note: this is only a parody and most likely will never happen in real series, plus as a respect for Ryan's World Team, Combo Panda didn't really set-up a blog.
"🐼🎮... 'Yo what's up Combo Crew?! Today, I just found an odd, peculiar, and unusual boomerang on my package that was been delivered to our home. I have a doubts at first, thinking that "Evil Robo-Panda", playing tricks on me, however, when I shake the box, I heard a voice, a teensy-weensey voice. So without having second thoughts I opened the box, and to my surprise, it is a boomerang; But like I said Combo Crew, it wasn't just an ordinary boomerang, it is a peculiar boomerang, with a face and a voice."
"It took me some time to think if this boomerang was a mutated evil living organism (as you already know, I'm not really that good at science), or just an illusion, so even if I think I'm losing my mind, I tried to say "hello" to it, and guess what Combo Crew?!.... IT TALKED! Yes you've read it clearly, IT TALKS! But instead of being scared and shocked to it, I hugged it (he is so cute after all, just like ME, and my pet dinosaur that is. And it looks just like a crescent shaped cat in the evening). I was determined to know more about this kitty-looking fella, so I called one of my science-geek friend, Peck. He did a thorough investigation and research about the odd and peculoar faced boomerang, but he only replied back at me with "NO RESULT" (😒 seriously?)."
"Until one day, I just received an e-mail, coming from a guy named Jumba Jookiba, and in that e-mail, he told me the following: Dear Mr. Combo Panda, (Um', I think he doesn't need to call me Mister, since I'm still a little panda kid who likes videogames 😅🎮) I just saw your picture with a white peculiar boomerang on your social media site (Wow! Am I really that famous? 😜😏). That boomerang creature with you right now is none other than "Boomer", an evil genetic experiment I created and designed just a living boomerang (now it all makes sense to me Combo Crew!). After I read the e-mail, I dug up more information about this Jumba guy, and to my surprise, he is a former evil genius scientist who created all 626 (well 629 according to the e-mail he sent me, but not mentioned here on my blog) illegal genetic experiments which its intention is to spread evil deeds to the whole universe (now that's scary Combo Crew 😱, I mean, I never played more latest games in my life, and now, I possessed an evil genetic alien? 😭)."
"However, as my doubts about this guy arises, I felt relief when I continously read Jumba's e-mail; But you don't have to worry, as Boomer is nothing, but can be used as an ordinary boomerang, or just a new 'ohana to it. (actually Combo Crew, I never heard the word 'ohana before, until Gus told me that it was a Hawaiian word for "a family"). After I read Jumba's e-mail, from there, I've decided to take good care of him, and will be my new playmate and a gaming buddy".
"Well Combo Crew, right now as I writing this blog, me and Boomer are starting to get to hang out around with my new 'ohana, we're playing video games now, and if I got bored, I played with him as my personal boomerang, but if ever he will attempted to be kidnapped by either Robo-Panda or Evil Ryan? I will stop them from touching him and being stolen. Well Combo Crew, that was my first experience and story about meeting with Boomer, and I hope to see you on my blog or videos. Bye Combo Crew! Peace out ! ✌️😁👊🎮🐼..."