A less known DS title but a fantastic one at that, really great RPG game and one missed by many! At £2.99 you can't go wrong and it will play on the 3DS aswell.
Presuming the deal is online and also available for collection, here's a sample:
In Solatorobo: Red The Hunter, players enter a world of epic fantasy action in a role-playing game set on the mythical floating islands of the Shepherd Republic. Take on the story of Red Savarin, an anthropomorphic dog with the ability to take a human form, as he does battle with giant robotic "mecha" and other enemies as he explores the floating islands. This engrossing quest is set in picturesque anime graphics produced by some of the world's leading animator and manga names