diff --git a/scripts/Contents/Characters/Kernyr.gd b/scripts/Contents/Characters/Kernyr.gd
index 70c1e22..7472326 100644
--- a/scripts/Contents/Characters/Kernyr.gd
+++ b/scripts/Contents/Characters/Kernyr.gd
@@ -39,7 +39,8 @@ func attack(type: int):
 		var anchor = currentFocusedBoss.position
 		var radius = 600
 		await sprintTo(anchor + Vector2(0, -radius), 0.1)
-		await TickTool.millseconds(2000)
+		await TickTool.millseconds(500)
+		await chargeUp()
 		var count = 10.0
 		for i in count:
 			await sprintTo(anchor + Vector2.from_angle(deg_to_rad(i / count * 360.0 - 90)) * radius, 0.5)
@@ -51,4 +52,5 @@ func attack(type: int):
 			):
 				if bullet is YangyiBullet:
 					bullet.look_at(anchor)
-		await TickTool.millseconds(3000)
+		await TickTool.millseconds(2000)
+		await chargeUp()
diff --git a/scripts/Statemachine/EntityBase.gd b/scripts/Statemachine/EntityBase.gd
index 82cb9b7..0e04c5a 100644
--- a/scripts/Statemachine/EntityBase.gd
+++ b/scripts/Statemachine/EntityBase.gd
@@ -203,6 +203,11 @@ func _physics_process(_delta: float) -> void:
 		velocity += inertia
 		inertia *= 0.9
 	move_and_slide()
+	var collision = get_last_slide_collision()
+	if is_instance_valid(collision):
+		inertia = inertia.bounce(collision.get_normal())
+		targetableSprinting = false
+		sprinting = false
 	storeEnergy(randf_range(0.01, 0.05 + fields.get(FieldStore.Entity.ENERGY_REGENERATION) - 1), true)
 	trailParticle.emitting = trailing
 	for cycler in cycleTimers.values():
@@ -339,9 +344,7 @@ func tryAttack(type: int, needChargeUp: bool = false):
 		state = cooldownTimer.start()
 	if state:
 		if needChargeUp:
-			charginup = true
-			await EffectController.create(ComponentManager.getEffect("AttackStar"), damageAnchor.global_position).shot()
-			charginup = false
+			await chargeUp()
 		for attackingState in attackingStates:
 			if attackingState in attackMutexes:
 				return false
@@ -356,6 +359,10 @@ func tryAttack(type: int, needChargeUp: bool = false):
 				playSound("attack" + str(type))
 			attackingStates.erase(type)
 	return state
+func chargeUp():
+	charginup = true
+	await EffectController.create(ComponentManager.getEffect("AttackStar"), damageAnchor.global_position).shot()
+	charginup = false
 func trySprint():
 	trailing = true
 	playSound("sprint")
@@ -370,7 +377,7 @@ func sprintTo(target: Vector2, speed: float):
 	await TickTool.until(
 		func():
 			position += (target - position) * speed
-			return position.distance_to(target) < 10
+			return position.distance_to(target) < 10 || !targetableSprinting
 	)
 	position = target
 	trailing = false