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Quote
Acidum is Latin for acid. This rifle uses it as ammo, which does corrosive damage overtime.
Quote 2
Item Description in Inventory

Acidum Rifle is a Rare gun.

Obtainment[]

This gun can be obtained after destroying the Factory's Core in the Second Sea and has to at least of done 10% of the damage during the Factory Raid. However, it’s not a guaranteed drop.

Upgrading[]

Talk to the Blacksmith in order to upgrade this weapon.

Grade
Materials
Effects
1
Vampire Fang 8 Leather 10
+10% Damage

Moveset[]

LMB Normal Attack
+
Touch Screen Normal Attack
Acidum Rifle M1
The user shoots a green laser that deals poison damage over time to the target.
Z-Key Spiky Bomb
100 Mastery
+
Z-Key Spiky Bomb
100 Mastery
Acidum Rifle Z
The user shoots a green projectile that explodes after a short time, dealing damage and stunning enemies. If the projectile directly hits a player/NPC, the bomb will latch on to them, stopping them from escaping it.
X-Key Acidic Smoke
200 Mastery
+
X-Key Acidic Smoke
200 Mastery
Acidum Rifle X
The user shoots three consecutive gas projectiles that deal damage as well as poison damage over time. It also disables the enemy's Instinct. It does not stun, but disables the opponent from attacking, dashing, using Flash Step or using Air Jump for a short duration of time.

The following results are tested on NPCs. The variables that were used to test include Full Body Aura, 600 mastery, 2550 points on Gun Stats, Grade 1 (+10% Damage) and no accessories. The results are for reference only, there is no guarantee that all of them are 100% correct.

Move Damage Cooldown
Normal Attack (Tap) 4230
[Z] Spiky Bomb 4614 ~10 second cooldown
[X] Acidic Smoke - Initial Hit     5191 ~16 second cooldown
[X] Acidic Smoke - Hit + stay in gas bubble 5191 + 385 (~3 times before despawning)

Move Breaks Instinct Instinct-trickable Notes
Normal Attack (Tap) Yes Yes The bullet can be dodged. The poison breaks Instinct.
[Z] Spiky Bomb Yes No Breaks Instinct upon explosion. The initial bullet can be dodged.
[X] Acidic Smoke Yes No Breaks Instinct no matter what.

Overview[]

Pros
General
  • Both moves break Instinct.
  • High Damage.
  • All moves mostly work extremely well in the air.
  • High combo potential.
  • Both moves have low endlag.
  • Great for grinding. (High damage, decent M1 cooldown and no knockback)
Normal Attack (Tap)
[Z] Spiky Bomb
  • Medium stun.
[X] Acidic Smoke
  • Good range.
  • High damage.

Cons
General
  • Rubber users are immune.
  • All moves have a slow start and speed.
  • High mastery requirements, especially for a Gun.
[Z] Spiky Bomb
  • Very small hitbox.
  • Very hard to hit from afar.
[X] Acidic Smoke
  • DoT is rather hard to pull off.
  • Low Stun.

Tips[]

  • It is recommended to use Macros (ex: auto-clickers) to perform one-shot combos easier/faster.
  • This Gun is mainly used in "skilled builds", best paired with Soul Cane/Shisui, Superhuman and Rumble.
  • The M1 attack of the Acidum Rifle is very useful. When all of the user's moves are on cooldown, or if the user is in a combo, they can spam-click on their opponent with this to drain the opponent's Instinct. The [X] move serves the same purpose.
  • Acidum Rifle can be very powerful in Raids, as the user can just use Air Jump a few times and wait for Enemies to spawn and spam the moves, then the user can use any Fighting Styles to kill the remaining NPC(s). (The user should not use it at islands 3, 4, and 5 because the Enemies with fruits can easily kill them)
  • Gun Mains use this Gun frequently due to the powerful M1 and stun(s). It's really powerful if paired with Ice, Dark and Rumble.
  • [Z] Spiky Bomb can stun enemies for a short period and allow the user to start combos. In addition, it prevents the annoying knockback on some moves such as Superhuman [C], Death Step [X], Quake [C], etc.
  • Use the [X] move to break Instinct and then follow up with a stun, preferably Soul Cane Z if the player is a gun main, and then use their combo.

Trivia[]

  • This gun is widely used in PVP due to its ability to break Instinct, have large AoE stun moves, and extremely high damage.
  • When equipping this gun, backflips when jumping and dashing animations won't show, although you are still able to use them.
  • There may be visual glitches when the gun appears in front of the player's character. This is due to your avatar's arms, and the player will need to change their avatar's arms to fix it.
  • This is the only gun that goes around to any players back.

Change History[]

Released in Update 8

Navigation[]

Guns
Mythical
Soul Guitar
Legendary
Bazooka
Kabucha
Serpent Bow
Rare
Acidum Rifle
Bizarre Rifle
Cannon
Refined Flintlock
Refined Musket
Refined Slingshot
Uncommon
Flintlock
Musket
Common
Slingshot
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