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