Now, it's time to face off against Lunar! He has an array of moves; He can slide, or jump, leaving grenades behind, fire a machine gun, punch, and fire an energy blast. You can't block the machine gun, so just keep your distance with that, however, everything else can be countered. If you catch a blast with good timinging, you can throw it back, and if he doesn't block it, he'll take damage. The same oes with grenades, but make sure to throw them from a distance, so you don't get hurt yourself.