The video shows how to play with nEngine camera. You can add multiple camera dummies to your level and define the breaking force between them.
nEngine also provide several other scrolling methods. You can explore each one by setting the nCameraConfig.SCROLL_BEHAVE. The methods are:
nCameraScrollBehave.SIDE_SCROLL - Scroll the camera to the corners of the level
nCameraScrollBehave.TO_DIRECTION_SCROLL - Scroll to the direction of the mouse
nCameraScrollBehave.BACK_TO_ORIGINAL_SCROLL - Will scroll back to the originl point