Finished

Assets/Scripts/EnemyStats.cs

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+using System;
+using UnityEngine;
+
+public abstract class EnemyStats : MonoBehaviour{
+	[HideInInspector] public float throwForce = 5f;
+	protected Rigidbody2D Rb { get; private set; }
+	protected Collider2D Collider { get; private set; }
+
+	protected virtual void Start() {
+		Rb = GetComponent<Rigidbody2D>();
+		Collider = GetComponent<Collider2D>();
+		
+		BalanceCanvas.instance.sliderChangedCallback += RefreshStats;
+		RefreshStats();
+	}
+
+	void OnDestroy() {
+		BalanceCanvas.instance.sliderChangedCallback -= RefreshStats;
+	}
+
+	void RefreshStats() {
+		throwForce = PlayerPrefs.GetFloat(nameof(throwForce), throwForce);
+	}
+}