Infectious Smile Katana: Weapon Stats, Combat Utility, and Strategy
The Infectious Smile katana is a shop weapon costing 1,000 Smile Coins that increases human walkspeed to 18 while equipped. Although it deals low base damage, its rapid swing rate, 50-hit durability, and periodic critical stun make it a top tool for surviving chases.
The Infectious Smile katana is a shop weapon costing 1,000 Smile Coins that increases human walkspeed to 18 while equipped. Although it deals low base damage, its rapid swing rate, 50-hit durability, and periodic critical stun make it a top tool for surviving chases.
Katana Stats and Acquisition
Players purchase the katana from the in-game shop for 1,000 Smile Coins, making it an accessible mid-tier upgrade among human weapons. While held, the weapon increases human walkspeed to 18, representing an 11.1125% speed buff over normal movement. This bonus fulfills the weapon store description: "Always be faster than the slowest person and you'll live."
The blade has a total durability of 50 hits before breaking. Normal swings deal 2 damage per strike with almost no hit stun. After 8 successful swings—taking approximately 3 seconds of continuous attacking—the katana emits a red aura and trail. The subsequent strike triggers a critical hit that deals 10 damage and stuns an infected opponent for 2 seconds. In addition, swinging the katana leaves an active hitbox until the blade connects with a target.
Regarding economy, the weapon requires three hits on an infected target to earn 1 Smile Coin. A full durability lifespan of 50 hits yields 16 Smile Coins. Players researching how to get coins fast often rely on weapons like the spear or chain for pure profit, while using the katana primarily for mobility.
Combat Strengths and Weaknesses
The main strength of the katana lies in positioning. Smilers naturally possess a walkspeed advantage over base humans, but the katana allows human players to outrun pursuers, perform evasive jumps, and clear parkour gaps across hazardous stages. When an infected player grabs a teammate, continuous katana strikes that land for more than 1 second force the Smiler to drop their grip.
Its primary weakness is low base stopping power. Because standard hits lack significant stun and deal only 2 damage, a solo katana user who gets cornered can be rushed down by an aggressive infected player before triggering the critical hit.
The weapon works best when coordinating with teammates. Combining the katana with a secondary item like a bottle provides temporary stun frames, allowing the player to land enough strikes to activate the red critical aura safely.
Choosing Between Main Human Weapons
Humans select their equipment depending on whether they need crowd control, raw stopping power, or evasion across large maps.
| Weapon Choice | Best Situation | Trade-Off |
|---|---|---|
| Katana | Outrunning infected pursuers and navigating parkour | Deals 2 base damage and earns only 1 coin per 3 hits |
| Bat | Early defense without spending Smile Coins | Lacks speed buffs and breaks after 10 hits |
| Branch | High burst damage against solo Smilers | Reduces player walkspeed and suffers a 4-second cooldown |
Compared to the free bat, the katana trades immediate stun capability for extended durability and superior sprint capability.
Survival Tactics and Game Modes
Mobility makes the katana exceptionally effective in elimination mode, where the goal is simply outlasting the timer to earn the Expert Survivor badge. Surviving this mode relies on maintaining distance, chaining sprint jumps across obstacle courses, and retreating from infected clusters rather than committing to direct brawls.
During special encounters, such as the hourly pumpkin slime boss battle, the walkspeed boost helps players evade area-of-effect shockwaves and run clear of incoming attacks. If forced into close combat against hostile NPCs like the baking giant or roaming slimes, players can continuously swing to trigger the 10-damage critical strike while circling outside the enemy grab radius.