Return to Rapture with change to spare, thanks to Amazon's cut-price offer for Bioshock 2, now just £6.25. Picking up years on from Jack's adventure, Bioshock 2 puts you in the air-tight boots of a Big Daddy. The Big Daddy, in fact, the first, Delta. Armed with his trusty drill-arm and a variety of other upgradable weaponry, Delta sets out to rescue his former Little Sister, Elena, held captive by her tyrannical mother, Sophia Lamb, a psychologist brought to Rapture by the late Andrew Ryan, whose death opened the door for Lamb and her Family, an army of Splicers, to claim Rapture as their own. With new foes like the Big Sister, a lithe, agile counterpart to the Big Daddy, Bioshock 2 is an action-packed underwater romp, lacking the original's cracking story and twists, but making up for such shortcomings with a refined combat system.