As for its lights, when you short press the trigger, the blade will glow white and two kinds of slashing sounds will play alternately. If you press and hold the trigger, the blade will light in full color and shift to the "Arc Sword Finish Mode"! If you press the trigger continuously afterwards, the finisher, "Arc Sword Finish" will be activated.
Finally, if you set a DX Arc Cube (sold separately) on the DX Arc Eye Sword, sounds of both sides will interact and the blade will emit light in the corresponding color. If you press the trigger continuously, the finisher move sound will play. This item cost 6,160 yen, and is set for a July 20th release.