Here is the full list of all 12 Guwange achievements worth 200 gamerscore. It takes around 3-4 hours to unlock all of the achievements on Xbox 360.
Clear the game using Shishin.
Clear the game using Kosame.
Clear the game using Gensuke.
Continue playing to unlock this secret achievement.
Destroy the Great Statue in Stage 3!
Connected a 10,000 coin combo!
Connect a 30,000 coin combo!
Score 25,000,000 points!
Collect 1000 coins during a boss battle.