praca_magisterska/games/unity/magisterka_1/Assets/Enemy.cs

using UnityEngine;

public class Enemy : MonoBehaviour
{
    public float speed = 2f;

    void Update()
    {
        transform.Translate(Vector3.down * speed * Time.deltaTime);
        if (transform.position.y < -10) Destroy(gameObject); // Out of bounds
    }
}