How to do it...

To play multiple sounds using the same AudioSource component, perform the following steps:

1. Create a new Unity 2D project and import the sound clip files.
2. Create a C# script class, called PlaySounds, in a new folder, _Scripts, that contains the following code. Additionally, add an instance as a scripted component to the Main Camera:

using UnityEngine; 
 
[RequireComponent(typeof(AudioSource))] 
public class PlaySounds : MonoBehaviour  
{ 
    public AudioClip clipEatCherry; 
    public AudioClip clipExtraLife; 
 
    private AudioSource audioSource; 
 
    void Awake() { 
        audioSource = GetComponent<AudioSource>(); 
    } 
 
    void Update() { 
        if (Input.GetKey(KeyCode.UpArrow))
            audioSource.PlayOneShot(clipEatCherry); 
 
        if (Input.GetKey(KeyCode.DownArrow)) 
            audioSource.PlayOneShot(clipExtraLife); 
    } 
}

3. Ensure that the MainCamera GameObject is selected in the Hierarchy panel. Then, in the Inspector panel...