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