Get ready to battle the evil Metroid once again when the original Game Boy classic Metroid II – Return of Samus becomes available to download on Nintendo 3DS via the Nintendo eShop this week. The second installment of the Metroid series sees Samus Aran on a mission to rid planet SR388 of the Metroid menace. Also released this week are Big Town Shoot Out, Just SING! Christmas Vol. 3 and more.