Infectious Smile Knife: Stats, Escape Mechanics, and Locations

The Infectious Smile knife is a human melee weapon that deals 10 damage per swing and lets players break free from Smiler grabs. You can find it across specific stage obstacle courses or spawn with it permanently through the VIP gamepass.

Knife Combat Stats and Grab Escape Mechanics

The knife serves as both an offensive weapon and a defensive tool against standard Smilers. Base stats for the standard map pickup include:

• Damage: 10 per hit
• Attack rate: 0.6 seconds
• Durability: 10 uses
• Equip delay: 0.8 seconds before attacking
• Visual effect: Flashes the screen of any Smiler eliminated by a knife strike

The primary utility of the knife is breaking out of enemy grabs. When grabbed by a standard Smiler, attacking with the knife instantly releases you from their hold. Escaping consumes 4 points of durability, allowing two escapes on a fresh 10-durability blade. If the attacking Smiler has consumed an iron potion, breaking the grab drains all remaining knife durability immediately.

Successful grab escapes trigger specific mechanical effects on both players:

• The grabbed human gains a +4 walkspeed boost for 1 second.
• The human receives a 2-second global weapon cooldown, temporarily halting further weapon swings.
• The targeted Smiler receives a 0.75-second stun.
• The grab escape fails against giant Smilers and endangered Smilers.

Methods to Obtain the Knife

Players can collect knives during active rounds, purchase a single-life copy at spawn, or obtain one automatically each round through the store.

The VIP gamepass automatically equips a standard knife upon spawning in the lobby, subject to a 15-second respawn cooldown. Purchasing a knife directly from the spawn stand grants an upgraded version with 30 durability points instead of the standard 10, though this version is lost upon dying or becoming infected.

Map Spawn Locations

Finding a knife in standard stages requires navigating specific terrain or clearing mini obstacle courses. The weapon appears in seven active stages:

• Ball Ramp: Located along an ascending platforming path near the stage exit, leading to an upper hallway on the roof where the knife rests on a wall. This spawn has a 300-second cooldown timer.
• Cargo Shipment: Located inside a designated shipping container that opens via a button on its exterior.
• Knife Obby: Placed at the end of a series of platforming jumps.
• Streets: Positioned across ground-level pathways and power line crossings.
• Volatile Facility: Located within the lower corridors of volatile facility.
• Isolated Mineshaft Industry: Spawns along interior support structures.
• Warhead: Positioned along interior pathways near defensive barriers.

Previous spawn points in Desolate Shelter and Raided Hideout are no longer active, as those locations now feature alternative items.

Combat Synergies and Survival Strategy

While the knife deals fast base damage, its short range leaves humans vulnerable to group rushes. Pairing the knife with longer-reach gear like the bat or branch allows you to land an opening stun before closing in with rapid knife strikes. Smilers run faster than humans, making the 1-second speed boost after an escape crucial for creating space.

Mastering gear management is a core part of learning how to survive as a human. Because the 0.8-second pullout delay leaves you open during direct chases, switching to the blade before entering tight corridors ensures you can defend yourself immediately. The knife remains functional from your inventory while grabbed, allowing you to trigger the escape even if you were holding a firearm or melee item when seized.

Knife-Related Badges

The knife is directly tied to two Roblox badges in the game:

• Obtained All Weapons In One Life: Requires holding every primary weapon simultaneously in your inventory, which includes the knife alongside the shotgun, handgun, hatchet, bat, bottle, ice potion, and invisibility potion.
• Porcupine: Awarded after a human survives taking 50 knife stabs during a single life.