Theory for how Trunks+Goten went SSJ

[desirecampbell]

Actually, Gohan wasn't in the room for very long before he managed to assumed the state of Super Saiyan for a few seconds. On the outside, it was about when Cell was becoming complete.
As for reigning and controlling in the form, he did that about the time Trunks was busy not hitting Cell.

Well, even a few hours inside the room of spirit and time (or whatever it's called) is a long time. Every hour on the outside is a little longer than 15 days inside.

Trunks has been training under high gravities almost all his life. Added to that, he's been sparring with Goten with a competitiveness equal to their fathers on an almost daily basis. Who's to say they didn't go SSJ just months prior to us seeing them as such?

Trunks and Goten's competitiveness was never near that of Vegeta and Goku - nobody's was. And while training with Vegeta and Goten definitly helped Trunks become strong, just strength isn't enough to propell someone into Super Saiyanism (I know that's a lame term, it's the best I could do) - we see on Vegeta on Namek stronger than Goku but unable to become a Super Saiyan.

[Akira]

Two words - Temper Tantrum

Temper Tantrum + necessary battle power = ?

If they were under extreme emotional distress, and to a young child, everything is an extreme situation when things are not going thier way. Not to mention the fact that they are both half saiyans like Gohan. Therefore they likely have the induced emotional power outbursts like Gohan. Any of thos coming off a powerful chibi-saiyan would quite possibly induce Super Saiyan in them.

[Duo]

Well, even a few hours inside the room of spirit and time (or whatever it's called) is a long time. Every hour on the outside is a little longer than 15 days inside.

Yes, I am aware, however, compared to the overall amount of time they spent in there...ah, y'know what I mean. We have a mutual understanding.

Clearly, there was something different from Gohan present in the conception and upbringing of the boys. Keep in mind that Vegeta didn't start training Trunks seriously until a few weeks before Gohan visited the City of the West to ask Bulma for a costume (which would become the Great Saiyaman). So, we cannot attribute his case to Vegeta's training, because he became Super Saiyan before that.

And in Gotens case, he says he doesn't even remember when it happened, which is also assumed for Trunks since he's never asked.

Now, there is a Filler that has Goten turning Super Saiyan while sparring with his mother, but that can't be taken to heart, because it would mean that he could remember, thus contradicting the Manga.

Alas, the kids strength can only attributed to one of two things-

-Playing "showdown" with eachother in the woods since they were young.
-Natural talent due to having been concieved by Super Saiyans.

I know the "inherited traits" theory was proven wrong, but this IS a fantasy story, in which it may very well be truth, and that is probably the case.

Goten and Trunks as Super Saiyans weren't weak either...Goten made Gohan have to TRY while dodging, and a half-assed blast from Trunks scared the be-jebus out of Eighteen. The look on her face was that of horror, after she BARELY dodged.

So, they were in league with the likes of Super Vegeta, or probably even greater.