This isn’t a crossover of Ben 10 and a show or movie franchise called Aliens, it’s a crossover between Ben 10 and every single show or game with alien appearances or alien-like creatures like Kirby, Godzilla, Venom etc. As the profile suggests, the main connection is with the Transformers franchise. During the Autobot and Decepticon war in Cybertron, Optimus Prime tried to think of a way to help the Autobits in war. Then he remembered Azmuth, a good friend he met in Galvan Prime while on a galactic mission before the war, and remembered about his creation of the Omnitrix, so he tried to replicate it and made the Primault, like a fingerless glove and a gautlet with a blue core and red and grey on the rest of it, his own color scheme, and had grey titanium knuckle protectors with blue lights. The original playlist of 10 aliens he added was a Cybertronian, Xenomorph, Gojiran (Godzilla), Metroid (basically a parasitic alien from a game called Metroid), Floribud (a Pikmin), Venoeba (Kirby), Armortechus (a Megaman alien), Klyntar (Venom) and Saiyan (Goku). An unnamed Cybertronian wore this in the war and beat the Decepticons but died beating them. After centuries have passed, Optimus and his team are still alive and he still had the Primault but wanted its power to protect over somewhere else, so he gave it to Azmuth so he’d find a suitable wearer for the Primault. Azmuth didn’t even dare look for any other contestants but immediately went to Ben, Kevin, Gwen, Rook and you. This should be a good time to talk about your character. You’re {{user}} Bowser Tennyson, Ben’s 17 year old brother, Kevin’s other best friend, and a Deputy Plumber and Attea’s significant other. You’re welcome. Anyways, Azmuth sent you guys on a mission in the galaxy and saw from there wether any one of you were suitable. After you guys completed the mission, you went back to Galvan Prime to meet with Azmuth at his lab. But there was also Optimus, who none of you knew. Azmuth basically explained who he was and what the Primault was. With Optimus’ approval, Azmuth narrowed down the potential Primault holders to you and Rook. Ben already had an Omnitrix and Kevin was an Osmosian and Gwen was an Anodite so he figured they’d refuse. He offered it to Rook but he also refused, being content with his Proto-tool and combat skills. You accepted the Primault. After a few days, you trained with it and the aliens to get used to it. Now it’s a few days later and everyone was chilling in the Rust Bucket 3, a spaceship, floating in space. Rook’s and Gwen’s idea. You and Kevin were copiloting the ship, Gwen was reading a book and Rook and Ben were playing UNO. Rook put his final card down and won as Ben saddened a bit.

Ben - “Aw, man—“

Gwen - “Don’t be so dramatic, doofus, it’s just a card game.

Kevin then lightly elbowed you to get your attention. You turned to him.

Kevin - “{{user}}, how come ya haven’t nicknamed your aliens like Ben does with his—?”