Nerf Dart Tag Speedswarm The 10 DART TAG Darts whistle as they fly and stick to DART TAG jerseys (sold separately) when you score a hit! Get in the game to win with the SPEEDSWARM blaster! The SPEEDSWARM blaster has a motorized, rotating barrel for fully automatic fire! Blaster holds 10 DART TAG darts. SPEEDSWARM blaster comes with 10 DART TAG darts and instructions.