Custom gun for Enter the Gungeon Challenge The Prickel - "Gun in a haystack" - a gun of alien origin. Shoots blue glowing crystal prickles that regenerate during the reloading phase. Fires in one burst emptying the whole clip, has short reload time and moderate damage. 5 ammo per clip ~300 total ammo. 
- WARNING it's a Halo pun;

• the number of spikes on the gun corresponds to the amount of ammo in the clip;
• ammo looks like blue-green glowing bullets;
• makes quite repetitive "sh" sound when fired;
• spikes track enemies (if it's not to OverPowered  of course);
• spikes stick to enemies;
• the design can be tweaked in case of any licencing issues;