The codes should work with the region specified but may work for other regions as well.
Device Compatibility: Action Replay, CodeBreaker & GameShark
Have Chihiro
3009bc8c0003
Have Extra Character 1
3009bc900003
Have Extra Character 2
3009bc910003
Have Highway Man
3009bc8b0003
Have Hongou
3009bc890003
Have Iso Hachi
3009bc8f0003
Have Katze
3009bc8a0003
Have Matsu Mushi
3009bc850003
Have Nightstalker
3009bc840003
Have Red Shadow
3009bc800003
Have Sazanka
3009bc820003
Have Suminasashi
3009bc830003
Have Tonu Umeda
3009bc8e0003
Have Tsubame
3009bc810003
Have Utamaru
3009bc8d0003
Have Utsusemi
3009bc7f0003
Extra Characters
500013010000
3009bc7f0003
Slow Motion
800a151cbe28
800a2634c4ca