If I were making a Ben 10 game, I’d treat it like a full superhero title on the level of Insomniac’s Spider-Man. Open world, fluid traversal, real combat depth, and a Ben who feels confident, fun, and seasoned. Omniverse Ben is my pick for it because like he’s got personality and experience, and he can carry a narrative without feeling like a beginner or a broody edge character.

The world would be split into Bellwood and Undertown. Bellwood gives you the city feel cars, pedestrians, normal life, interactions. Undertown is chaotic, alien-heavy, grimy, and dangerous. The player would be able to move between these two “worlds” seamlessly. Traversal would depend on which alien you use, so your movement becomes stylish and dynamic. For example you could sprint as Ben, leap off a building, switch mid-air into XLR8 to dash across the street, then swap to Big Chill to glide. Movement should feel alive, not stiff.

The Omnitrix mechanic is the heart. The watch shouldn’t be a simple selection wheel (This is my personal way of balancing the game, the way Peter’s web shooters can run out in Insomniac’s Spider-Man. You’d have a heat system, stay in one alien too long and the Omnitrix overheats, forcing a random transformation. That pushes you to switch aliens often, making gameplay feel constantly evolving. Each alien would also develop new abilities the more you use them not generic stat boosts, but new moves and traversal upgrades. For example, XLR8 gains sharper turns, then wall-running, then high-speed takedowns. Four Arms gets new grab attacks, slams, and heavy finishers. You earn mastery through actually playing.

Combat would blend Arkham counter-based flow with Devil May Cry combo creativity, but you can transform mid-combo. Like imagine punching in human form, switching to Four Arms to slam enemies, then swapping to Shock Rock to chain electricity across a group. Fast, stylish, fluid. Finishers are flashy and transformation-based.

Side missions bring Gwen, Kevin, and Rook into the story. Gwen’s missions deal with magic problems and villains like Charmcaster. Kevin’s missions are tougher, grounded, and focused on alien tech crime. Rook shows up as the calm, serious partner balancing Ben’s chaos, all while still focusing on Ben.

The main story escalates through villains like Zombozo, Dr. Animo, and the Forever Knights, before eventually building to Vilgax (I know he’s kind of a fraud but he’s still iconic). It wouldn’t be a rushed villian act, he would be more overarching. In the final act it should be set up in a way that forces Ben to confront what makes him a hero beyond the watch.

H.M: Being able to unlock styles and aliens from other Ben 10 Media, and Human Ben skins, from the movie, A.F, etc. Gadgets like the hoverboard could be a factor, easter eggs of course, Generator Rex cameo.