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