@johannhowitzer: The faster you move the larger the laser grid is. So dash across the screen. Use the slow when crossing back across the laser area and then dash again. Anyway that's how I got the hard badge.
To beat the boss gain boost by driving in the 'oncoming' lane. Then boost up to each of the the three port holes (left, right and center) and jump onto them. After each jump return the 'oncoming' lane to refuel boost.