Here is the full list of all 35 Koi-Koi Japan Hanafuda playing cards achievements.
Quit Tutorial Mode.
Collect each variety of postcard.
Complete "Light Five" Yaku.
Complete all Yaku.
Complete "Red and Blue Ribbons" Yaku.
Complete "Light Three" Yaku 10 times.
Win 10 times.
Get 10 successive wins.
Defeat opponents from all areas in Collection Mode.
Complete "Boar, Deer, Butterfly" Yaku 5 times.
Get 5 successive wins.
Complete "Rain Light Four" Yaku.
Earn 20 points or more with 1 Stop.
Complete "Light Four" Yaku.
Complete "Blue Ribbon" Yaku.
Complete "Boar, Deer, Butterfly" Yaku.
Call Stop after your opponent calls Koi Koi.
[Multiplayer]Quit Tutorial Mode.
[Multiplayer]Defeat opponent for the first time.
Defeat opponent for the first time.
Complete "Red Ribbon" Yaku.
Complete "Light Three" Yaku.
Call Koi Koi, form a new Yaku, and call Stop.
Form 3 Yaku or more in 1 round.
Form 5 Yaku or more in 1 round.
Earn 10 points or more with 1 Stop.
Complete "Moon and Cup" Yaku.
Complete "Cherry Blossom and Cup" Yaku.
Win 100 times.
Win 500 times.
Complete "Light Four" Yaku 10 times.
Complete "Light Five" Yaku 10 times.
[Multiplayer]Win 10 times.
[Multiplayer]Win 100 times.
[Multiplayer]Earn 20 points or more with 1 Stop.