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