Talk:Mario vs Mickey Mouse/@comment-26458135-20150331170138/@comment-26577795-20150710023527

Starting with the power, it comes from three main sources.

Xemnas absorbed the power of a broken Kingdom Hearts, and a complete one is capable of restoring thousands of worlds from darkness. Sora and Riku were capable of beating them, and the rest of the main cast is scaled to match them.

Vanitas wielded a completed X-Blade, the counterpart to Kingdom Hearts, Vanitas was able to beat Vanitas when he wielded the incomplete version, and Aqua beat him wielding the completed version. Sora, Riku and Mickey are likely more powerful than both of them.

Zeus was casually able to reshape the worlds into Sora, Donald and Goofy in Olympus Colosseum. Sora and Aqua were able to defeat both Hades and the Ice Titan (Along with the Rock Titan for Sora), who should all be comparable to Big Z.

Now on to speed.

They still display the planet Turo in the background to Deep Space, and it's mentioned in Aqua's story IIRC. We have no reason to believe that the distance between this version of Hawaii and Turo are any different. Again, the calc low-balls the feat by making it the next solar system. My calculation (Assuming Turo is in the Andromeda Galaxy) is 308,790,000c, with Ventus as ~17,191,000c.

The reason the worlds seem close together is because we travel to them very quickly, that or its just a visual thing, which it likely is as the worlds appear very small when you're in the Gummi Ship (Especially in KH1).