Garou
Member
https://www.nintendo.co.jp/summersale2017/index.html
https://topics.nintendo.co.jp/c/article/c092bbb0-7bdd-11e7-8cda-063b7ac45a6d.html
Titles on sale:
3DS (37)
Fire Emblem: Awakening
Super Mario Maker 3DS
Yoshi's Woolly World
Mario Kart 7
Super Mario 3D Land
New Super Mario Bros. 2
Rhythm Heaven Best Plus
The Legend of Zelda: Ocarina of Time 3D
Animal Crossing: New Leaf amiibo Plus
Miitopia
Xenoblade
Dragon Quest VIII
Puyo-Puyo Chronicle
Severed
Subara City
Touch Battle Tanks 3D-4
1000m Zombie Escape!
Ika-chan
Famicom
Joy Mecha Fight
Game Boy
Pokemon Red
Pokemon Green
Pokemon Blue
Pokemon Yellow
Super Famicom
Mother 2 (Earthbound)
Panel de Pon (Tetris Attack)
Demon's Crest
Breath of Fire
Breath of Fire II
Castlevania Dracula XX
Ganbare Goemon 2
Ganbare Goemon 3
Ogre Battle: The March of the Black Queen
Final Fantasy IV
Final Fantasy V
Final Fantasy VI
Romancing SaGa 2
Famicom Detective Club Part II
Wii U (15)
Pikmin 3
The Wonderful 101
Super Mario Maker
Sonic Lost World
Sonic & All-Stars Racing
Fast Racing Neo
Mighty No. 9
Ace of Seafood
Super Famicom
Metal Slader Glory: Director's Cut
Kamaitachi no Yoru
Game Boy Advance
Mother 3
Tomato Adventure
Wii
Rhythm Heaven Fever
Super Mario Galaxy
Xenoblade
Sale is 20% off with an additional 20% off if you have your NNID connected to a My Nintendo account. (Applied after the other, so effectively 36% off)
Also eShop prepaid-cards on Amazon.co.jp have a 5% discount and if you buy a prepaid card at Seven-Eleven you will get an additional code for up to 10% of the card-value.