This game just accidentally popped up in my memory as one of these childhood memories. Back then, I thought it's one of the best games ever. After completing it, I think this might be true. One of the best NES games imo. Despite pretty simple design, it has very enjoyable gameplay and the music is so awesome. The levels are pretty simple, except the last one, but the challenge is fair. It's 4.5/5 from me.