Here is the full list of all 25 Seasons of the Samurai achievements.
Reach 5% progress in the game to earn the yellow belt.
Reach 10% progress in the game to earn the orange belt.
Reach 20% progress in the game to earn the green belt.
Reach 30% progress in the game to earn the blue belt.
Reach 50% progress in the game to earn the purple belt.
Reach 70% progress in the game to earn the brown belt.
Reach 90% progress in the game to earn the black belt.
Obtain bronze stars in all levels in Kyūshū.
Obtain bronze stars in all levels in Chūgoku.
Obtain bronze stars in all levels in Shikoku.
Obtain bronze stars in all levels in Kansai.
Obtain bronze stars in all levels in Chūbu.
Obtain bronze stars in all levels in Kantō.
Obtain bronze stars in all levels in Tōhoku.
Obtain bronze stars in all levels in Hokkaidō.
Obtain gold stars in all levels in Kyūshū
Obtain gold stars in all levels in Chūgoku.
Obtain gold stars in all levels in Shikoku.
Obtain gold stars in all levels in Kansai.
Obtain gold stars in all levels in Chūbu
Obtain gold stars in all levels in Kantō.
Obtain gold stars in all levels in Tōhoku.
Obtain gold stars in all levels in Hokkaidō
Find all the pieces of the painting.
Reach 100% progress.