No. Sora is the only playable character besides Riku and Mickey.
Mickey is playable during certain boss fights if and when you are defeated. If this occurs you will see a special option 'Don't Give Up' on the screen next to the 'I Give Up'and 'Load Game' Options. Riku is playable during the final fight against Xemnes when he is in his supreme form.
You can find the ending at Youtube.com.Just search in "kingdom hearts 3 secret ending".There you go!:)
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If you go talk to wakka when you have to gather food for the trip kairi, riku and sora plan then it will be revealed that tidus and wakka are going to explore the secret place
No one really knows for sure. But Kingdom Hearts is based about having all the hearts of people's into one place (Kingdom Hearts)
"Reconnect" is not actually a new Kingdom Hearts game. It's the name of the secret ending in Re:Coded.
No. Kingdom Hearts Chain of Memories is a filler that takes place in-between Kingdom Hearts and Kingdom Hearts II. For more information, click on the related questions below.
The secret boss of Neverland is called 'Phantom'.
They are in Agrabah and Neverland (Clocktower)
Not that I know of
Yes there is Kingdom Hearts books, their mangas. only Kingdom Hearts and Chain of Memories are finished though, kingdom hearts 2 and kingdom hearts 358/2 days are still in the proses. best place to read these is on www.onemanga.com
Yes there is a secret. once you've found all the dalmation puppies you unlock a secret ending.
No because kingdom hearts 3 is related to kingdom hearts birth by sleep but Ventus lost his heart in Ventus's secret ending when Ventus gave Sora his heart, Aqua put Ventus into this dome like where Roxas found Sora in it in kingdom hearts 2. Aqua bilt that to make Ventus heal in Aqua's secret ending.