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