Weapons and gadgets can be bought at the Weapon Shop, with the exception of event boss drops.
Weapons
Weapons enhance your basic attack damage by multiplying it. For example, a normal punch of 100 damage, multiplied by a normal dagger, would be 130 damage, instead of 100. Not all weapons have the same rate of attack, as the dagger does more damage per hit then the katana but the katana does more damage per second via spamming
You can also upgrade the tier of the weapon with cash and increase your damage when using it. Currently, the only weapons in the shop are dagger, katana and pistol. There are also event weapons, such as the Pumpkin Scythe, Pumpkin Pistol, Winter Sword, Candy Cane guns, Easter Katana, Easter Staff, Ghastly Sword, Cursed Glove, Peppermint Saber, Ice Sickle, and Ornament Blaster, which are obtained mainly from limited time bosses and shops.
Weapon  Name  Price/Requirements  Damage Multiplier 

Dagger 
$10,000 → $15,000 → $25,000 
1.3x → 1.6x → 1.95x
Skill Damage: 3x  
Katana 
$15,000 → $20,000 → $30,000 
1.15x → 1.4375x → 1.725x  
Pistols 
$20,000 → $30,000 → $50,000 
1.5x → 1.875x → 2.25x (Tier 3 is Dual Wielding)
Skill Damage: 0.75x x5
 
Pumpkin Scythe (Event) 
Tier 1: 2018 Halloween Event: 1/10 Drop rate from Pumpkin Reaper 2019 Halloween Event: 1/10 Drop rate from Stage 2 or 1/5 Drop from Stage 3 Jester
Tier 2: 2019 Halloween Event: 1/20 Drop Rate from Stage 4 Jester 
Tier 1: Basic Attack: 2.25x
Skill Attack: 2.5x Tier 2: Basic Attack: 2.475x Skill Attack: 3x  
Candy Cane Guns (Event) 
Tier 1:
2018: 1/10 Drop Chance from Evil Santa 2019: $ 2,000,000 in Weapon Shop Tier 2: $ 5,000,000 in Weapon Shop

Tier 1: Basic Attack: 2x
Skill Attack: 2.25x Tier 2: Basic Attack: 2.2x Skill Attack: 2.475x (freezes enemies)
 
Easter Staff (Event) 
Tier 1:
2019: 1/10 Drop Chance from Mr. Compress 2020: 2,500 Eggs bought at the Easter Bunny Tier 2: 5,000 Eggs bought at the Easter Bunny

Tier 1: Basic Attack: 2x
Skill Attack: 0.4x (Per hit) Tier 2: Basic Attack: 2.2x + 0.11x Skill Attack: 0.44x (Per Hit)  
Easter Katana (Event)  Tier 1: 2,500 Eggs bought at Easter Bunny
Tier 2: 5,000 Eggs bought at Easter Bunny

Tier 1: Basic Attack: 2.25x
Skill Attack: 0.45x (Per Hit) 3.6 Tier 2: Basic Attack: 2.475x Skill Attack: 0.55x (Per Hit) 4.4
 
Pumpkin Pistol (Event) 
Tier 1:
2019: available in weapon shop for 1 Million cash. 
Tier 1:
Basic Attack: 2x (shot will explode) Skill Attack: 2.5x  
Winter Sword
(Event) 
Tier 1:
1/5 Drop rate from stage 2 Evil Santa 2/5 Drop rate from stage 3 Evil Santa 1/2 Drop rate form stage 4 EVil Santa Tier 2: 1/5 Drop rate from stage 4 Evil Santa

Tier 1:
Basic Attack: 2.25x Skill Attack: 2.5x Tier 2: Basic Attack: 2.475 Skill Attack: 3.5x
 
Ghastly Sword
(Event)

Tier 1: 20,000 Cursed Tokens bought at The Dealer
Tier 2: 50,000 Cursed Tokens bought at The Dealer

Tier 1: Basic Attack: 2.75x
Skill Attack: 3.25x Ground Shatter (breaks the ground) Tier 2: Basic Attack: 3.025x Skill Attack: 3.575x Ground Shatter (breaks the ground)
 
Cursed Glove
(Event)

Tier 1: 25,000 Cursed Tokens bought at The Dealer 
Tier 1: Basic Attack: 2.25x
Skill Attack: 3.0x
 
Ice Sickle
(Event)

Tier 1: 50,000 Presents bought at the Ice Smith 
Tier 1: Basic Attack: 2.25x
Skill Attack: 2.50x
 
Ornament Blaster
(Event)

Tier 1: 50,000 Presents bought at the Ice Smith 
Tier 1: Basic Attack: 2x
Skill Attack: 2.5x
 
Peppermint Saber (Event) 
Tier 1: 1/3 Drop rate from Stage 10 
Tier 1: Basic Attack: 2.75x
Skill Attack: 20% heal  
Jester Spear (Event)  Jester (Party House):
5% drop chance Mega Jester: 50% drop chance 
Basic Attack: 2.5x
Skill Attack: 3.12x (an AOE throw)  
Jester Scythe (Event)  Jester (Party House):
30% drop chance 
Basic Attack: 2.5x
Skill Attack: 3x (Fiery spike AOE in front of you)  
Clockwork Blade (Event)  Mechanical Failure:
0.1% drop chance 
Basic Attack: 3x (Also has a little shockwave)
Skill: Makes two swords, gives you a faster striking speed 
Gadgets
Gadgets in the game are armors/accessories from the anime/manga Boku No Hero Academia which enhances your quirk. Currently, the only gadgets you can buy are Gauntlets, Shadow Cape and Iron Soles (Iron Soles can be upgraded to further enhance the features).
(Armor damage reduction is applied before any quirk or blocking damage reduction)
Gear
Gears are similar to weapons as they give boosts to certain stats such as damage. Gear, however, differ from weapons due to the fact they appear on the user’s body instead of in their hands. Some (but not all) gear have upgrades that boost their stats. Some gear give more that attack damage as some gear also improve durability, speed and jump power, up to now there are only five gear capable of reducing damage for the user, namely the Pumpkin Helmet, Santa Armor, Bunny Ears, Ghastly Armor, and Festive Lights.
Gadget  Name  Price  Features 

Gauntlets  $50,000  Increases explosion damage. (Must have Explosion quirk.)
Damage Multiplied: Q: 1.75x → 2x Z (E): 1.25x → 1.5x X: 3x → 3.5x C: 1.75x → 2x V: 4x → 4.5x *Does not boost Adrenaline Rush in any way.*  
Shadow Cape  $40,000  It boosts the damage for Dark Shadow. (Must have Dark Shadow quirk.)
Damage Multiplied: Q: 1.25x → 1.5x C: 2.5x → 2.75x V: 3x → 3.5x *Does not boost Abyssal Black Body in any way.*  
Gamma Suit (Iron Soles → Iron Soles + Air Force Gloves)  $75,000 → $100,000  Increases damage for Deku One For All moves. (Must have Deku One For All.)
Damage Multiplied: Q: 2.25x → 2.7x Z: 2.5x → 3x X: 2x → 2.4x C: 3.5x → 4.2x V: 4.5x → 5.4x *Does not boost One For All Full Cowling in any way.*  
Sharp Shooter Gear  $50,000  Changes the moves of Electrification (Must have Electrification).
Electric Blast replaced with an ability to plant disks and electrocute them. Full Discharge replaced with Electric Containment (The user spins and shoots out disks, electrocuting them afterwards, creating a large cage of electricity that deals very high damage to anyone in it).  
Giant Horn  $50,000  Increases growth size and damage reduction for Giantification (Must have Giantification).  
Harden Gear  $50,000  Increases the damage of Hardening's movesets (Must have Hardening).
Red Counter (Q): 2.25x/2.93x/3.60x > 2.50x/3.25x/4.00x Red Gauntlet (X): 3.25x/4.00x > 3.58x/4.40x Earthshattering Strike (C): 3.25x/4.40x > 3.90x/4.80x  
Wing Headphones  $50,000  Increased defense during Fierce Wings' Flight (Must have Fierce Wings).  
Permeation Cape  $50,000  Reduces cooldowns for Permeation's moveset (Must have Permeation).
Permeation Escape: Removes cooldown. Permeation Combo: Cooldown reduced from 5 to 3 seconds.  
Jet Boots  $50,000  Increases the damage for Jet's movesets (Must have Jet).
Jet Slam (Q): 4.00x > 4.50x Spinning Kick (X): 3.00x > 3.25x Jet Barrage (C): 0.20x > 0.25x per hit  
Engine Boots  $50,000  Increases the speed of Engine's sprint (Must have Engine).  
Hell Flame Armor  $50,000  Increases the damage for Hellflame's movesets (Must have Hellflame).
Hellflame flight speed increased by 25%. Flashfire Fist (Q): 2.50x/3.00x > 2.75x/3.30x Flashfire Creation (Z): 2.75x/3.3x > 3.00x/3.60x Hellfire Ball (X): 3.00x/3.60x > 3.25x/3.90x Flashfire Fist (C): 0.30x/0.36x > 0.35x/0.42x per hit Prominence Flame (V): 3.75x/4.50x > 4.00x/4.80x  
Respirator  $100,000  Reduces incoming damage by 15%,shortens the stun time by 50% and reduces stamina consumption for every AFO moveset by 10% (Must have AFO).
Base Reduction: 0% > 15% w/Springlock Combination: 16.67% > 33%~ w/Impact Recoil: 50% > 60% w/Both: 58%~ > 65%~  
Speakers  $50,000  Increases the damage of Voice's movesets by 25% (Must have Voice).
Yell: 0.375x per hit > 0.47x~ per hit Shout: 0.6x per hit > 0.75x per hit  
Laser Belt  $50,000  Increases the damage of Navel Laser's movesets by 20% (Must have Navel Laser)
Navel Laser: 2.5x > 3x Navel Flight: 2x > 2.4x Navel Barrage: 1.5x per hit > 1.8x per hit Super Navel Laser: 4x > 4.8x  
Thirteen's Gloves  $75,000  Increases the damage of Blackhole's movesets by 20% (Must have Blackhole)
Black Hole: 0.075x per hit > 0.9x per hit Black Hole Trap: 0.0875x per hit > 0.105x per hit Black Hole Explosion: 0.075x per hit (+2x) > 0.9x per hit (+2.4x)  
Kurogiri's Metal Brace  $75,000  Provides the Warp Gate user a 15% damage deduction (Must have Warp Gate).  
Overhaul's Mask  $100,000  Increased damage for Overhaul's movesets (Must have Overhaul)
Ground Spikes: 3x > 3.25x Disassembling World: 3.5x > 3.75x  
Todoroki's Vest  $100,000  Increased damage for Half Hot Half Cold's movesets (Must have HHHC)
Fire Ball/Ice Field/Burning Ice Field: 2.5x > 2.75x/2.25x > 2.5x/3x > 3.25x Fire Floor/Ice Spikes/Burning Ice Spikes: 2.75x > 3x/2.5x > 2.75x/3.25x > 3.5x Fire Bomb/Glacier/Ultimate Explosion: 3.5x > 3.75x/3.25x > 3.5x/2x > 2.25x + 2.5x > 2.75x Flame Thrower/Ice Slide/Flashfreeze Heatwave: 0.25x > 0.3x/2.5x > 2x/2.25x > 2.5x + 2.25x > 2.5x  
Frog Suit  $75,000  Increased damage for Frog's movesets (Must have Frog).
Tongue Grab: 3x > 3.25x Tongue Leap: 3.25x > 3.5x Tongue Throw: 2x > 2.25x + 2x > 2.25x Tongue Barrage: 0.15x > 0.2x  
Tier 1
Santa armor Tier 3 Santa Armor (Event) Tier 4 Santa Armor 
2018:
[Needed to kill Evil Santa 15 times for Each purchase] $100,000 → $250,000 → $500,000 2019: Boss drop from Evil Santa, Christmas boss. The tier depended on which stage boss is killed. 
Tier 1: Reduces 0.75 damage per 10 durability.(Example: with 1k durability, you would be taking 75 less damage.)
Tier 2: Reduces 1 damage per 10 durability. Tier 3: Reduces 1.25 damage per 10 durability .(Example: with 1k durability, you would be taking 125 less damage.) Tier 4: Reduces 1.5 damage per 10 durability.  
Pumpkin Helmet (Event)  Drop from Boss Jester, Halloween boss. The tier depended on which stage boss is killed. 
Tier 1: Reduces 0.75 damage per 10 durability. Tier 2: Reduces 1 damage per 10 durability. Tier 3: Reduces 1.25 damage per 10 durability. Tier 4: Reduces 1.5 damage per 10 durability.  
Bunny Ears (Event)  5,000 Eggs bought at the Easter Bunny  Reduces 1.25 damage per 10 durability (Example: with 1k durability you would be taking 125 less damage) Increases jump height.  
Ghastly Armor (Event)  Tier 1:
15,000 Cursed Tokens bought at The Dealer Tier 2: 40,000 Cursed Tokens bought at The Dealer Tier 3: 60,000 Cursed Tokens bought at The Dealer 
Tier 1: Reduces 0.75 damage per 10 durability. (Example: with 1k durability you would be taking 75 less damage) Tier 2: Reduces 1 damage per 10 durability. Tier 3: Reduces 1.25 damage per 10 durability. Increases HP regeneration by 67% when HP is below 50%. Healing is indicated by whirl particles around player. (Extra regeneration will stop when HP is back above 50%)  
Festive Lights (Event)  Tier 1: 20,000 Presents bought at the
Ice Smith Tier 2: 40,000 Presents bought at the Ice Smith Tier 3: 60,000 Presents bought at the Ice Smith 
Tier 1: Reduces 0.75 damage per 10 durability. (Example: with 1k durability, you would be taking 75 less damage.)
Tier 2: Reduces 1 damage per 10 durability. (Example: with 1k durability you would be taking 100 less damage) Tier 3: Reduces 1.25 damage per 10 durability. (Example: with 1k durability, you would be taking 125 less damage.) 10% damage increase when below 50% HP  
Jester Armor (Event)  Mega Jester:
30% drop chance 
Boost: 1.75x/1.96x (buff, held G for 10 seconds)/1.62x (debuff, held G for 10 seconds)
Armor: 400 Special Move (G): Hold G to gain a large temporary boost in damage and armor, debuffs happen after duration, the longer you hold G the stronger the buff and the debuff becomes more severe. Boost can exceed 2x  
Clockwork Armor (Event)  Lich:
0.5% drop chance Clockwork Pawn: 0.1% drop chance Restless Spirit: 0.1% drop chance Forgotten Tinkerer: 0.1% drop chance 
Boost: 1.8x
Armor: 475 Special Move (G): Press G to gain a gradual boost in speed, hold G for 20 seconds to gain a gigantic burst of speed. Over time the gears will go from yellow to orange and once they turn orange red you'll be slowed. 