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