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