This is how Ryan and Sora visit Odette's world in Ryan's Quest: Dream Drop Distance.
[Derek and Human Crash are protecting Queen Uberta from Nightmare Dream Eaters]
Crash Bandicoot (EG): Get away from my mother!
Derek: Someone please help two princes!
Queen Uberta: Help us!
[Ryan and Sora defeats the Nightmares]
Queen Uberta: Thanks for saving us.
Ryan F-Freeman: Your welcome. Are you ok?
Crash Bandicoot (EG): Huh? Have we met before?
Sora: What? [to Ryan] Wait, Ryan. Is this what happened with Owen, Jiminy and Tron?
Ryan F-Freeman: Yes. But, we're not in Canterlot in Equestria. And that world is not one of the ones that's asleep. I don't understand.
Queen Uberta: What's the matter?
Sora: Uhh. We were just wondering where we are.
Derek: Wow. What was that sword your holding?
Ryan: This weapon? It's called a Key...
Crash Bandicoot (EG): Shush!
Sora: What's wrong?
Queen Uberta: My son knows. You two are from another world. Right?
Ryan: Uhhh. Yeah. Yes we are.
Sora: Umm. Right. Yeah. How did he knows that?
Crash Bandicoot (EG): Bromley told us. I'm Crash Bandicoot. This is my brother, Prince Derek, and my mom, Queen Uberta. Derek is training to fight the Great Animal. That's why I'm in this world being a prince.
Ryan: Hmmm. Sora? You think we are in a world the human version of Crash visited that we don't know about? A world locked in sleep somehow? Cause I guess....
Sora: You're a bit confussed, Ryan.
Crash Bandicoot (EG): One thing. I am also Yen Sid's student along with Prince Rigby.
Sora: Prince... Rigby?
[Then, Nightmare dream eaters appear]
Derek: Not again.
[Ryan and Sora summon thier Keyblades]
Ryan: I'm Ryan. The Prime-prince of Friendship. And this is Sora.