Defeat Mitsukubiryu and obtain the Tsurugi Sword in stage 16.2 - Shinano
Complete bonus stage 16.5 - Sado
Complete stage 17.1 - Kouzuke, 17.2 - Kai, or 17.3 - Toutoumi
Complete stage 20 - Sagami
Defeat Minamoto no Yoritomo in stage 21 - Kamakura and beat the game
Obtain the Kagami Mirror in stage 14 - Echizen
Increase Kagekiyo's Sword points to 99 (purple Ken Big)
Increase Kagekiyo's Zeni to 99 (green Zeni Big)
Increase Kagekiyo's health to the maximum amount (Inochi big)
Defeat the dagger-throwing Yoshitsune on Thorny Path difficulty
Defeat the sword-wielding Yoshitsune on Thorny Path Difficulty
Defeat a ball-throwing Benkei on Thorny Path Difficulty
Defeat a rod-wielding Benkei on Thorny Path difficulty
Obtain the three sacred items and defeat Minamoto no Yoritomo on Thorny Path difficulty
Escape from The Pit to Kyoto by paying to use the blood pool
Make it back from The Pit via Enma's Judgement
Complete stage 2 - Hell Part 2
Complete stage 4.1 - Buzen, 4.2 - Suou, or 4.3 - Ishimi
Complete stage 15 - Kaga
Obtain the Magatama Jewel in stage 14.3 - Ise
Complete stage 6.1 - Iyo, 6.2 - Bingo, or 6.3 - Houki
Defeat Raijin in stage 7.1 - Sanuki and complete the stage
Defeat Fuujin in stage 7.3 - Inaba and complete the stage
Complete bonus stage 7.5 - Awaji or Mimasaka
Complete stage 8 - Bizen
Obtain the Magatama Jewel in stage 9.5 - Setsu
Complete bonus stage 14.5 - Shima
Complete stage 9.1 - Harima or 9.2 - Tango
Obtain the Kagami Mirror in stage 15.2 - Ecchuu