diff --git a/Assets/Scripts/Core/Settings/SettingsInterfaces.cs b/Assets/Scripts/Core/Settings/SettingsInterfaces.cs
index 98c8dfcf..c3c0ac69 100644
--- a/Assets/Scripts/Core/Settings/SettingsInterfaces.cs
+++ b/Assets/Scripts/Core/Settings/SettingsInterfaces.cs
@@ -272,6 +272,7 @@ namespace Core.Settings
         // Physics Layers
         int FortBlockLayer { get; }     // Layer index for fort blocks
         int ProjectileLayer { get; }    // Layer index for projectiles
+        int GroundLayer { get; }        // Layer index for ground/floor (used by vacuum projectile)
         
         // Projectile Abilities
         float VacuumSlideSpeed { get; }  // Constant velocity for vacuum sliding (m/s)
diff --git a/Assets/Scripts/Minigames/FortFight/Core/FortFightSettings.cs b/Assets/Scripts/Minigames/FortFight/Core/FortFightSettings.cs
index 30f80c46..c51b3fe9 100644
--- a/Assets/Scripts/Minigames/FortFight/Core/FortFightSettings.cs
+++ b/Assets/Scripts/Minigames/FortFight/Core/FortFightSettings.cs
@@ -126,6 +126,10 @@ namespace Minigames.FortFight.Core
         [AppleHills.Core.Settings.Layer]
         [SerializeField] private int projectileLayer = 9;
         
+        [Tooltip("Layer for ground/floor - vacuum projectile activates sliding when hitting this layer (Default: Layer 0 'Default')")]
+        [AppleHills.Core.Settings.Layer]
+        [SerializeField] private int groundLayer = 0;
+        
         [Header("Visual Settings")]
         [Tooltip("Color tint applied to damaged blocks")]
         [SerializeField] private Color damageColorTint = new Color(0.5f, 0.5f, 0.5f);
@@ -152,6 +156,7 @@ namespace Minigames.FortFight.Core
         
         public int FortBlockLayer => fortBlockLayer;
         public int ProjectileLayer => projectileLayer;
+        public int GroundLayer => groundLayer;
         
         public Color DamageColorTint => damageColorTint;
         
diff --git a/Assets/Scripts/Minigames/FortFight/Projectiles/VacuumProjectile.cs b/Assets/Scripts/Minigames/FortFight/Projectiles/VacuumProjectile.cs
index 6c0aeb39..585649d8 100644
--- a/Assets/Scripts/Minigames/FortFight/Projectiles/VacuumProjectile.cs
+++ b/Assets/Scripts/Minigames/FortFight/Projectiles/VacuumProjectile.cs
@@ -6,7 +6,8 @@ namespace Minigames.FortFight.Projectiles
 {
     /// <summary>
     /// Vacuum projectile - high mass, slides along ground after landing.
-    /// On floor/block impact: applies constant force to the right and destroys blocks.
+    /// Maintains normal physics until it hits the ground layer, then activates sliding mode.
+    /// While sliding, destroys blocks it encounters.
     /// </summary>
     public class VacuumProjectile : ProjectileBase
     {
@@ -17,7 +18,10 @@ namespace Minigames.FortFight.Projectiles
         
         protected override void OnHit(Collision2D collision)
         {
-            // If already sliding, count block destruction
+            // Get settings once for all checks
+            var settings = GameManager.GetSettingsObject<IFortFightSettings>();
+            
+            // If already sliding, handle block destruction
             if (isSliding)
             {
                 var block = collision.gameObject.GetComponent<Fort.FortBlock>();
@@ -27,7 +31,6 @@ namespace Minigames.FortFight.Projectiles
                     SpawnImpactEffect(collision.contacts[0].point);
                     
                     // Get damage from settings
-                    var settings = GameManager.GetSettingsObject<IFortFightSettings>();
                     float blockDamage = settings?.VacuumBlockDamage ?? 999f;
                     
                     // Deal high damage to destroy block instantly
@@ -46,15 +49,36 @@ namespace Minigames.FortFight.Projectiles
                 return;
             }
             
-            // First hit - spawn impact effect and start sliding
-            SpawnImpactEffect(collision.contacts[0].point);
-            Logging.Debug("[VacuumProjectile] Hit surface - starting slide");
-            StartSliding();
-            // Don't destroy - keep sliding!
+            // Check if we hit the ground layer to activate sliding
+            int groundLayer = settings?.GroundLayer ?? 0;
+            
+            if (collision.gameObject.layer == groundLayer)
+            {
+                // Hit ground - start sliding behavior
+                SpawnImpactEffect(collision.contacts[0].point);
+                Logging.Debug($"[VacuumProjectile] Hit ground (layer {groundLayer}) - starting slide");
+                StartSliding();
+                // Don't destroy - keep sliding
+                return;
+            }
+            
+            // Hit something else (fort block, etc.) while not sliding - use normal projectile behavior
+            Logging.Debug($"[VacuumProjectile] Hit {collision.gameObject.name} (layer {collision.gameObject.layer}) - normal impact");
+            
+            // Deal damage if it's a fort block
+            var hitBlock = collision.gameObject.GetComponent<Fort.FortBlock>();
+            if (hitBlock != null)
+            {
+                hitBlock.TakeDamage(Damage);
+                SpawnImpactEffect(collision.contacts[0].point);
+            }
+            
+            // Normal projectile destruction
+            DestroyProjectile();
         }
         
         /// <summary>
-        /// Start sliding behavior after hitting surface
+        /// Start sliding behavior after hitting ground surface
         /// </summary>
         private void StartSliding()
         {
diff --git a/Assets/Settings/FortFightSettings.asset b/Assets/Settings/FortFightSettings.asset
index 04b20c4d..0b4402c7 100644
--- a/Assets/Settings/FortFightSettings.asset
+++ b/Assets/Settings/FortFightSettings.asset
@@ -21,26 +21,6 @@ MonoBehaviour:
     trajectoryTimeStep: 0.1
     trajectoryLockDuration: 2
     autoRegisterInput: 0
-  materialConfigs:
-  - material: 0
-    baseHp: 20
-    baseMass: 0.5
-  - material: 1
-    baseHp: 50
-    baseMass: 2
-  - material: 2
-    baseHp: 15
-    baseMass: 0.8
-  sizeConfigs:
-  - size: 0
-    hpMultiplier: 1
-    massMultiplier: 0.5
-  - size: 1
-    hpMultiplier: 1.5
-    massMultiplier: 1
-  - size: 2
-    hpMultiplier: 2
-    massMultiplier: 2
   aiDifficultyConfigs:
   - difficulty: 0
     data:
@@ -61,6 +41,7 @@ MonoBehaviour:
       thinkTimeMin: 0.2
       thinkTimeMax: 0.8
   defaultAIDifficulty: 1
+  aiAllowedProjectiles: 000000000100000003000000
   weakPointExplosionRadius: 6
   weakPointExplosionDamage: 30
   weakPointExplosionForce: 30
@@ -119,4 +100,5 @@ MonoBehaviour:
   ceilingFanDropSpeed: 30
   fortBlockLayer: 16
   projectileLayer: 15
+  groundLayer: 14
   damageColorTint: {r: 1, g: 0, b: 0, a: 1}