Mostly finished, just needs sound, polish and hosting online

Assets/Scripts/GameObjects/Eyes.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+public class Eyes : MonoBehaviour {
+	static LevelController levelController;
+	static GameObject characterObject;
+
+	SpriteRenderer spriteRenderer;
+
+	void Awake() {
+		spriteRenderer = GetComponent<SpriteRenderer>();
+
+		if (!levelController) {
+			levelController = GameObject.Find("Level Controller").GetComponent<LevelController>();
+		}
+
+		if (!characterObject) {
+			characterObject = GameObject.Find("Character");
+		}
+	}
+
+	void FixedUpdate() {
+		HandleAnimation();
+	}
+
+	void HandleAnimation() {
+		//determine the brightness based on distance from the center of the tilemap
+		float distance = Vector3.Distance(transform.localPosition, Vector3.zero) / 32f;
+		float brightness = Mathf.Log(distance, 10) - levelController.globalLightLevel;
+		float spooked = Mathf.Log(Vector3.Distance(transform.localPosition, characterObject.transform.localPosition) / 32, 2) - 0.8f;
+
+		if (spooked < 1f && brightness >= 0f) {
+			brightness *= spooked;
+		}
+
+		Color color = Color.white;
+		color.a = brightness;
+
+		spriteRenderer.color = color;
+	}
+}