Ok, finally finished, hope you like em:
http://goofamealius.home.comcast.net/moldken.bmpI think I got everything you wanted, but if I'm missing something, please tell me. His projectile is his sword shooting a beam, and since you probably have much better effects for a beam, you could easily replace the one provided. Also, his special can vary depending on what you want. MY idea was for him to have a fire aura while yelling something, and shooting flames in random directions. Anywho, I tried my best =D
Ok, now the other stuff...
Music: Sobakasu, the Opening theme to Rurouni Kenshin would be good. But, if you don't find that battle intensive enough, any song from the Ganbare Goemon series would be nice =P
Stage: If you DO watch Kenshin, are have seen any pictures/setting of traditional Japanese towns, then a street from one would be really cool. Extras could include guys opening their doors and throwing random objects out =P
However, if this is too hard, any nature oriented place would be cool.
Voice: Closest Kenshin voice you got, Japanese or American dub.
Thanks in advance, and I wish you good luck.