Buu's Regenerative Ability

[Belle Hibiki]

I was poking around the internet a little bit to try and find an answer for this, but I didn't come across one. 18 suggested I bring my question to this board, sooo...

It seems a given that Sai-Sei Regeneration is an ability of the Buu characters, considering how often they get their limbs blown off and then reformed. However, what about the Buu characters' uncanny ability - thanks to their puttylike skin and almost complete lack of anatomy - to bounce back from attacks? Repeatedly in the show, Buu's scratches, abrasions and dents would disappear extremely quickly, leaving him none the worse for wear.

Is this ability covered within Buu's 'Sai-Sei Regeneration', or is it something that could be added?

Edit: I don't mean for it to look like I'm trying to give the Buu's effective immortality here - during the fight with Kid Buu, Majin Buu was still losing a ton of energy (Vegeta comments on it), and his ability to 'bounce back' was severely reduced. Buu's can still be defeated as they can lose enough energy not to be able to reform/heal, this would be more like a long-term advantage in not being hindered by injuries over the course of a fight.

[Orion]

Its just a property of Buu's skin. You can use it, as long as you don't use it to god mod in fights. You could say someone hits you hard in the face, caving one side in, and then you bounce it back, but have been damaged by it.

[Belle Hibiki]

So you suffer the damage, you just don't tend to show it?

[Kaden]

Yes. As for regenerating limbs and such, that takes energy.

[Belle Hibiki]

Alright, thanks for clearing that up for me!

[Vegeta Jr]

Simply put, you get still "damaged" in a fight as usual. But unlike normal people, if you suffer major damage in a fight like a lost limb, you dont need to get special medical attention.