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