In regards to just "looks" then it doesn't really matter what you use. There's a bunch of different systems for romanizing Japanese and they're all equally acceptable.
However, I'd say Kaiōken, Kaiouken, and Kaiohken are better than Kaioken and Kaio-ken because there's a difference in Japanese between お (o) and おう (ou) and not having that difference be displayed in some way is bad form to me.
Let the joy of love give you an answer! Check out my book!Goku was so far stronger because he was using Kaioken for most of the fight, and Kaioken is not a factor with Super Saiyan (hell, Super Saiyan Goku is "only" 2.5 times stronger than Kaioken 20x, Super Saiyan Vegeta would be 50 times stronger than whatever Vegeta is capable of pulling off).
Anyway, Vegeta was between Piccolo (even with 2nd form Freeza; about 1 million in terms of numbers) and Goku (3 million in base). If we put him at 2 million, he is a bit weaker than 100% Freeza, but we'd probably see something similar to Golden Freeza versus SSB Goku.
20x. 50x is Super Saiyan.
Also, we know Goku's base during that fight was three million. While I don't think we know Vegeta's battle power, we do know that he was weaker in base since Goku was casually deflecting Freeza's Death Beams before their fight really started and that was something Vegeta couldn't do.
Let the joy of love give you an answer! Check out my book!I also don't see Trunks existing in this timeline, or at least not born until much later compared to canon.
I get the feeling that Masakox is a bit too enslaved to canon with these what-ifs.
Saiga isn't just wrong, he's saying the exact opposite of what's right.
Hah, no. That wasn't the argument I was making at all - I never once said, or implied, that anime's ratio of repeated-to-one-off techniques was higher than the mangas. I only said that Toei has a trend of repeating techniques that were only one-offs to the manga, and that the manga has more one-off techniques than it does recurring ones. That last part is just a comparison between two elements from the manga.
And I was including the movies because they're both produced by Toei during the same period as Z. Even without them, I can think of lots of recurring technique spam from the anime, mostly in the Cell & Boo arcs (the Makankosappo gets tossed around a lot, especially).
What if I add the umlauts and such in my head
edited 13th Jul '17 6:28:28 AM by Saiga
That is true, but from what I've seen the Japanese themselves seem to prefer to not make that distinction when romanizing words. So if you're going by how they'd do it, Kaioken is probably the best. Then probably Kaiouken, and Kiaohken.
edited 13th Jul '17 7:28:52 AM by LSBK
The truth of that is rather complicated. Under Kunrei-shiki
, which is used by the Japanese government and taught in schools, it'd be Kaiôken.
Under the Hepburn system
, which is apparently the most widely used, it'd be... I'm not entirely sure because the Wikipedia article is confusing. Either Kaiōken or Kaiouken.

You got it. If characters still fought with weapons (or in the case of almost everybody sans Goku and Yamcha, fought with weapons period), what do you think they would use?
edited 12th Jul '17 9:23:41 PM by HandsomeRob
One Strip! One Strip!