>>49397113>How many hours does it take to beat the game?If you just want the credits to roll it'll take 12-20 assuming you're not being a completionist. If you want to complete every story chapter expect well over 30 hours.
>And does it have something like a battle tower?Sort of. There's a place to rematch most trainers, but a couple have their own rematches outside of it.
>And do hisuian zorua and zorua change their appearance in battle as if they had the illusion ability?No, but they have Illusion in the code so that's what they'll get when they're transferred.
>And how much stronger than the regulars are the new forms of palkia and dialga? Their stats arent that different...Same Abilities and learnsets, the only difference is the -20 Atk and +20 SpDef for Dialga and +20 Spe for Palkia. In-game that's basically irrelevant but post-HOME Palkia will be quite a bit better due to that huge speed tier buff.