That NiGHTS idea for the DS would work with the concept of the game really well. NiGHTS gameplay is very synesthetic in nature where the flight path across the sky was already highlighted by the trail of stars left behind and was intertwined with the combat system (paralooping). Essentially giving the user the ability to draw those paths/trails and attacks would make for a complementary experience very much in the spirit of the game.
That's how NiGHTS was meant to be updated in truth, not just with the tiresome pursuit of better and better graphics. The actual pseudo-sequel to NiGHTS that Sonic Team had in development for Saturn, AeroNiGHTS, expanded upon the game with similar aspirations for a new, creative contol solution, adding a tilt sensor in the controller to enable full 3D flight (flying in and out toward the screen).
That's how NiGHTS was meant to be updated in truth, not just with the tiresome pursuit of better and better graphics. The actual pseudo-sequel to NiGHTS that Sonic Team had in development for Saturn, AeroNiGHTS, expanded upon the game with similar aspirations for a new, creative contol solution, adding a tilt sensor in the controller to enable full 3D flight (flying in and out toward the screen).