Respawnables - Stun Grenade
The Stun Grenade is a grenade released on the Holiday Update 2014. It can be unlocked at level 7 and costs 750 
for 5 grenades. It will stun anyone caught within the blast radius for a brief period of time, but deals no damage unlike the Energy Grenade.
Trivia
- This grenade is the buyable and same version of Energy Grenade and Neuralyzer MIB.
- Unlike the Neuralyzer MIB you can stun yourself if you stand too close to the detonation point.
- The Stun Grenade seems to based off the M84 Stun Grenade, which in real life is used to incapitate anyone within the blast radius. However, this version is based off of the flashbang variant, which blinds anyone in the area of effect for a short amount of time.
- This grenade has same price as normal grenades.
- Wearing the Ghostbusters Pants and Referee T-Shirt will make you immune against Stun Grenades. However, the white flash will still appear on your screen.
- Many players using this grenade to perform a gadget glitch.