[Dan Hibiki]

Akuma has performed the attack several times in the story.

He used the Shun Goku Satsu as Ken watched him kill Gouken.
He attempted to kill Gen using the Shun Goku Satsu, but failed because Gen had purified his soul and atoned for all of the deaths he caused as an assassin.
He destroyed M. Bison with the Shun Goku Satsu just before, during, or immediately after the final battle in the Street Fighter II tournament.

Every time Akuma used the technique he came out unscathed. Thusly by determination of the occurences in the story, the attack is NOT a Kamikaze attack.

History on Oro: Oro is a master in his own right, so powerful that no matter how hard he searched he could find no equal on Earth to teach his techniques and styles to. He then had to paralyze one of his arms using magic, and even then most people couldn't take him down. Ryu is the only one who could come close to taking Oro on one-armed (SFIII), and Oro determines that in 15 years more of training Ryu should be powerful enough to give Oro at least a challenge with him using both arms.

In the SFIII games Oro has one arm paralyzed and in a sling. Because of this, Oro's Super Arts have two versions each. One version uses just his free arm, and the other one takes all of the Super Meter's energy (all levels) and he rips off his sling and makes use of his other arm in an insanely powerful attack.

Oro's Yagyou Dama is where he uses one arm and fires off a semi-large floating orb that drifts lethargically across the screen. It is not terribly powerful.

Oro's EX Yagyou Dama is where he rips off his sling and leaps into the air and forms an energy ball that takes up half the screen and hurls it at the person. It is one of the most damaging attacks in the Street Fighter world.

I say Cell had a soul, you say he didn't, and there is no way to prove or disprove this, so we should drop it. Nonetheless, Cell thought and thusly existed, and Gohan killed him.

I can understand the androids not having a soul because Android 16 never comes back when everybody else who was killed by Cell is resurrected.

Buu most certainly has a soul because Shenron resurrects Kid Buu as Ubuu, purified of his evil. Because he can be resurrected, that means that Buu has a soul, unlike Android 16 who can't be resurrected.

For princevegetam's questions: it should be a sin to kill an animal for the heck of it, but to kill plants is... well, stupid. We'd all go to Hell because we decided to walk across the grass instead of using the sidewalk.