A classically styled platform shooter in the vein of Contra, Chronos Twins puts a temporal twist on the genre by using the DS' dual screens to let players instantly warp between two different time periods. Gamers take control of Nec, a member of the hearty Ilhedar race, as he travels through time in an effort to defeat the powerful alien entity known as Twime, save the planet Skyla from certain destruction, and avenge his brother Nash. The game arms players with a variety of upgradeable weapons and sends them through 15 enemy- and puzzle-filled time zones, each punctuated with a frantic boss battle. And as gamers advance through the story they will unlock new skills, such as the ability to freeze time on one or both of the screens. ~ Christopher Brown, All Game Guide