DestroyByContact.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class DestroyByContact : MonoBehaviour
{
    void OnTriggerEnter2D(Collider2D other)
    {
        if (other.tag == "Boundary")
        {
            return;
        }

        if (other.tag == "Enemy1")
        {
            return;
        }

        if (other.tag == "Ship")
        {
            HealthScript.healthValue = HealthScript.healthValue - 25;
            other.gameObject.SetActive(true);
            Destroy(gameObject);

            if (HealthScript.healthValue < 1)
            {
                other.gameObject.SetActive(false);
            }
        }

            if (other.tag == "Shot" )
        {
            ScoreScript.scoreValue += 3;
            Destroy(other.gameObject);
            Destroy(gameObject);
        }

        if (other.tag == "Shot_2")
        {
            ScoreScript.scoreValue += 3;
            Destroy(other.gameObject);
            Destroy(gameObject);
        }

        if (other.tag == "Shot_3")
        {
            ScoreScript.scoreValue += 3;
            Destroy(other.gameObject);
            Destroy(gameObject);
        }

    }
}