Originally in development for Game Boy Advance, Chronos Twins incorporates time travel as you explore two different temporal dimensions. This is a retro side-scrolling shooter with a difference, gameplay is split onto both screens of the DS, one showing the present and one showing the past.

The planet Skyla is under alien invasion from an invincible, nameless enemy. This mysterious being cannot be defeated due to her ability to physically exist in both the past and the present concurrently. During the invasion Nash, one of the Llhedar race inhabiting the planet, is killed and his brother Nec is chosen to defeat the enemy and avenge his brother's death. The Llhedar race are known for their psychic powers and being persistent in completing their goals, no matter the danger involved. This is why Nec is chosen for the mission by the Wise, the sages of Skyla who have invented the Dual Time machine allowing travel to two time dimensions at once.

Playing as Nec, action takes place on both screens simultaneously. The character is moved across both screens at the same time with enemies and obstacles not necessarily being the same on either screen. This forces players to keep track of both screens.

Chronos Twins has been designed with a gentle learning curve in mind and once the player has mastered the split screen system the screens can be merged so that time becomes whole again. Later on, time can be split again and action takes place on both screens once more.

With 15 complex levels and bonuses to find, Chronos Twins becomes increasingly challenging until all alien threats are eliminated.

For a glimpse of the split screen time system, a preview video is below. Chronos Twins is released across Europe on October 12, 2007. A specific date for a North American release is yet to be announced.