Highlight Jin, wait 7 seconds, highlight Devil Jin, wait 2 seconds, highlight Kazuya, wait 2 seconds and select Devil Jin.
When the fight starts Devil Kazuya, will be who your fighting with!
Hirano Miharu is an alternate costume or pallete swap for xiaoyu,she might be unlocked if you complete ling's story,i tried it this way and unlocked her but i dont know if its the same for you though.You could try to unlock her via cheat codes as an alternate solution.
Jinpachi Mishima is a playable character in Tekken 5, with a cheat device, but you don't need it in dark resurrection.
you can't unless you cheat
If you use CWCHEAT or NITE-PR you can
he is not playable unless you have a cheat CD e.g. codejunkies etc
You can't really unlock him, there seems to be a cheat for him, but not on the original game itself, so you can't really.
on the psp version you can unlock him by using cw cheat(google it), on tekken 5 for ps3, beat the game once with anyone
get cheat devices like action replay code breaker or game shark or ask some one who knows
what is the point of playing if you're going to cheat?
If you have to cheat what is the point in playing the game?
By having a custom firmware psp and using a cheat device called cwcheat. It is a program run on a plugin you can download it on this site http://cwcheat.consoleworld.org/
yes, it is possible there is a cheat on www.gamespot.com that allows you to unlock jinpachi