Okiraku Tennis 3D - 500 Yen
Nikori no Puzzle Masyu - 500 Yen
Metroid II: Return of Samus - 400 Yen
The Legend of Zelda: Four Swords Anniversary Edition - Free
Spot the Difference - 500 Yen
Also, as a bonus, here's what Japanese gamers are rating Senran Kagura! Thanks to NintenDaan for the heads up.