Proton Backpack
Deals extra damage to ghosts and spectres. Originally brought to the Gungeon by a team of investigators who suspected that something strange was going on.
QualityB
Sell Creep Price30Wiki LinkOpen Wiki
Magazine Size∞
Max Ammo500
Reload Time-
DPS50
Damage50/s
Fire Rate0.10
Shot Speed14
Range90
Force30
Spread0
ClassBeam
Description
Proton Backpack is a gun that fires a slow, homing laser stream. It locks onto enemies once it hits.
Synergies
If the player also has 
Zombie Bullets or 
Ghost Bullets , kills with the Proton Backpack spawn 
Gunslinger's Ashes ghosts that attack enemies.
Notes
- The lock-on feature makes the gun ideal for bosses and strong mobs.
Trivia
- This gun is a reference to the anti-ghost weapon from the movie Ghostbusters . The tagline is a reference to the one of the movie's most famous phrases, "Don't cross the streams".
- The "something strange" mentioned in the Ammonomicon entry is a nod to the Ghostbusters theme song.
- The "team of investigators" is presumed to have been the Ghostbusters themselves.
- The Electron Pack is most likely a reference to the Wunderwaffe DG-2 from the Call of Duty Franchise.
- The shape of the Proton Backpack in the Electron Pack Is similar to the shape of the Blood launcher from Nuclear throne
Unlock Method
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