Error in Buu's Transformation?

[ffman1985]

Evil Buu eats Fat Buu and become the Super Buu.
……
Afterward, Vegeta removes Fat Buu from Super Buu 's body.
Why it does not transform back to Evil Buu but Kid Buu?

[Bussani]

People wonder about this a lot. I think it's because "Evil Buu" is more like Fat Buu's evil half than a "real Buu" of its own, kind of like how Piccolo Daimao was the evil half of the Nameless Namekian. "Super Buu" was a result of that evil half becoming the dominant half--in other words, Super Buu and Fat Buu are made of the same components, but rearranged. Removing the Fat Buu (or Mr. Buu) that was inside still had the influence from the absorbed Kaioshin in him, so removing him left nothing but pure, uninfluenced Buu.

[Rocketman]

Because Vegeta said he was transforming into either fat or skinny Buu, and Vegeta cannot be allowed to be right about anything.

[Piccolo Daimao]

Simplest answer - magic.

[Fox666]

People wonder about this a lot. I think it's because "Evil Buu" is more like Fat Buu's evil half than a "real Buu" of its own, kind of like how Piccolo Daimao was the evil half of the Nameless Namekian. "Super Buu" was a result of that evil half becoming the dominant half--in other words, Super Buu and Fat Buu are made of the same components, but rearranged. Removing the Fat Buu (or Mr. Buu) that was inside still had the influence from the absorbed Kaioshin in him, so removing him left nothing but pure, uninfluenced Buu.

That's how I think too. The skinny Boo still had portions of the Kaioshins, and they were completely erased when the fat Boo was removed.

I find it interesting how the skinny Boo and Pure Boo are alike from a plot-perspective. Both are meant to be being of pure evil of sort and both easily defeated the fat Boo.

[Akumaito Beam]

Simplest answer - magic.

A Majin did it?

[Piccolo Daimao]

Simplest answer - magic.

A Majin did it?

Indeed. Majin, wizard, warlock, etc. "A wizard did it" is actually a plausible explanation here.

[Sanity's_Theif]

Super Buu and Fat Buu are made of the same components, but rearranged.

This is what makes me believe both are near equal in power with Super Buu being slightly better because he has a body more suited to fighting. Of course I expect an attack from someone about this but I've been all around these arguments 1000 times and this is the perspective I keep coming back to so I wouldn't even bother trying to change my mind now.

[Fox666]

After the transformation, it was stated numerous times that Evil Boo is much stronger than the fat Majin Boo. Not to mention his Ki could be sensed from the afterlife (giving us the first indication that it would be at least comparable to Goku as a Super Saiyan 3).

[hleV]

It's eating, not absorbtion. Eating someone works differently for Boo than absorbing. Boo ate many people and it didn't change anything. Whenever Boo absorbed someone, he instantly received some of the absorbee's traits.

Now, Pure Evil Boo ate Good Boo. It obviously had a different impact to Boo than eating anyone else. Either because Pure Evil Boo wanted that or because Boo's magic is Boo's magic.

So Boo has merged into one again, but with the good one being "tamed" this time. This new Evil Boo obviously had access to the power of Pure Boo and probably some of South Kaioshin's (and his intelligence). Also, his Kaioshin cape disappeared, which implies that Evil Boo can manage what to take from the absorbed Good Boo and what to get rid of. It's later shown that Evil Boo had Good Boo to serve a special purpose inside him.

When Good Boo was unplugged from Evil Boo, Evil Boo started to act weirdly. He stated himself that he wouldn't be himself anymore, so he knew shit. What actually happened during his transformation to Pure Boo is really unclear.