In a hypothetical battle between Hoopa in its Unbound form and Goku in his Ultra Instinct form, Hoopa Unbound would hold a potential advantage due to its unique abilities and tactics. Hoopa Unbound can manipulate dimensions and summon powerful creatures.
Hoopa Unbound would begin by creating portals to unpredictable dimensions, disrupting Goku's movements and making it challenging for him to predict attacks. This would put Goku at a disadvantage, as Ultra Instinct relies on precise reflexes and anticipation.
Additionally, Hoopa Unbound could summon an array of legendary Pokémon or other formidable allies to the battlefield, overwhelming Goku with their combined strength and abilities. Goku, despite his incredible power, might struggle to contend with multiple opponents of this caliber.
To secure victory, Hoopa Unbound would exploit Goku's moments of distraction and hesitation, utilizing psychological tactics to further weaken his resolve.
Ultimately, through a combination of dimensional manipulation, summoning powerful allies, and psychological warfare, Hoopa Unbound would have a strategic edge over Goku in his Ultra Instinct form.