Square Enix has announced that The World Ends With You: Solo Remix is now available on Android, though it does cost $17.99. The game first came out on iOS in 2012, so it has taken quite a while to reach Android. Solo Remix is the mobile version of the primary game that originally launched on the DS in 2007.
Solo Remix does come with some special features when compared to the Nintendo DS version. The game's art has been re-designed to look better on the high-resolution displays of most smartphones.