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