January 4, 20214 yr I think they’re literally just called portals. Riku uses it in DDD to wake up Sora, and I guess they can also be used to travel to different versions of worlds. The battle gates in KH3 also look like that. Sora used it in KH3 also to get to Scala ad Caelum, and of course we see Riku use it in MoM based on the screenshot you posted. Not sure if there’s really a good explanation for the differences between how they’re used and what’s needed to even get them to appear in the first place for each different instance.
January 4, 20214 yr What WakelessDream said plus there are also blue variations, but they're still just portals then.
January 30, 20214 yr They're portals that people who have the Power of Waking can create to enter someone's heart/dream. Riku creates one at the end of Dream Drop Distance to go into Sora's heart/dream to wake him up. Inside his heart/dream took the form of Destiny Islands. And Sora creates one at the end of KH3 to go into Xehanort's heart which took the form of Scala ad Caelum.
Edited by Véńțúş_wîņđ