TO SQUASH: added basic balls.

Assets/Scripts/Game/Balls/BasicBall.cs

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+using UnityEngine;
+
+public class BasicBall : MonoBehaviour
+{
+    private Animator animator;
+
+    public AudioClip spawnSound;
+
+    public AudioClip bounceSound;
+
+    public AudioClip hitSound;
+
+    private AudioSource audioSource;
+
+    private Vector2 speed;
+
+    // Start is called once before the first execution of Update after the MonoBehaviour is created
+    void Start()
+    {
+        audioSource = GetComponent<AudioSource>();
+        animator = GetComponent<Animator>();
+        speed = new Vector2(Random.Range(-0.05f, 0.05f), Random.Range(-0.05f, 0.05f));
+
+        audioSource.PlayOneShot(spawnSound);
+    }
+
+    // Update is called once per frame
+    void FixedUpdate()
+    {
+        AnimatorStateInfo stateInfo = animator.GetCurrentAnimatorStateInfo(0);
+
+        if (stateInfo.IsName("BasicBallMove")) {
+            transform.Translate(speed);
+        }
+    }
+
+    void OnCollisionEnter2D(Collision2D collision)
+    {
+        if (collision.gameObject.CompareTag("Wall") || collision.gameObject.CompareTag("Ball"))
+        {
+            ContactPoint2D contact = collision.GetContact(0);
+            speed = Vector2.Reflect(speed, contact.normal);
+        }
+    }
+}

Assets/Scripts/Game/Balls/BasicBall.cs.meta

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+fileFormatVersion: 2
+guid: 5788fcee29b49660abecc58bc2095706