Final typo fix.

Assets/Scenes/introCutscene.unity

@@ -5358,7 +5358,7 @@ MonoBehaviour:
   dialogTextObject: {fileID: 800722483}
   soundGroundCollapse: {fileID: 640560462}
   soundFall: {fileID: 640560461}
-  soundShake: {fileID: 0}
+  soundShake: {fileID: 640560463}
 --- !u!82 &640560461
 AudioSource:
   m_ObjectHideFlags: 0

Assets/Scenes/level1.unity

@@ -2316,6 +2316,7 @@ GameObject:
   - component: {fileID: 1727909778}
   - component: {fileID: 1727909777}
   - component: {fileID: 1727909776}
+  - component: {fileID: 1727909779}
   m_Layer: 0
   m_Name: startTrigger
   m_TagString: Untagged
@@ -2375,6 +2376,102 @@ Transform:
   m_Father: {fileID: 0}
   m_RootOrder: 12
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!82 &1727909779
+AudioSource:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1727909775}
+  m_Enabled: 1
+  serializedVersion: 4
+  OutputAudioMixerGroup: {fileID: 0}
+  m_audioClip: {fileID: 8300000, guid: 801a9847a78be5a26a8d4a322e69b55b, type: 3}
+  m_PlayOnAwake: 0
+  m_Volume: 1
+  m_Pitch: 1
+  Loop: 0
+  Mute: 0
+  Spatialize: 0
+  SpatializePostEffects: 0
+  Priority: 128
+  DopplerLevel: 1
+  MinDistance: 1
+  MaxDistance: 500
+  Pan2D: 0
+  rolloffMode: 0
+  BypassEffects: 0
+  BypassListenerEffects: 0
+  BypassReverbZones: 0
+  rolloffCustomCurve:
+    serializedVersion: 2
+    m_Curve:
+    - serializedVersion: 3
+      time: 0
+      value: 1
+      inSlope: 0
+      outSlope: 0
+      tangentMode: 0
+      weightedMode: 0
+      inWeight: 0.33333334
+      outWeight: 0.33333334
+    - serializedVersion: 3
+      time: 1
+      value: 0
+      inSlope: 0
+      outSlope: 0
+      tangentMode: 0
+      weightedMode: 0
+      inWeight: 0.33333334
+      outWeight: 0.33333334
+    m_PreInfinity: 2
+    m_PostInfinity: 2
+    m_RotationOrder: 4
+  panLevelCustomCurve:
+    serializedVersion: 2
+    m_Curve:
+    - serializedVersion: 3
+      time: 0
+      value: 0
+      inSlope: 0
+      outSlope: 0
+      tangentMode: 0
+      weightedMode: 0
+      inWeight: 0.33333334
+      outWeight: 0.33333334
+    m_PreInfinity: 2
+    m_PostInfinity: 2
+    m_RotationOrder: 4
+  spreadCustomCurve:
+    serializedVersion: 2
+    m_Curve:
+    - serializedVersion: 3
+      time: 0
+      value: 0
+      inSlope: 0
+      outSlope: 0
+      tangentMode: 0
+      weightedMode: 0
+      inWeight: 0.33333334
+      outWeight: 0.33333334
+    m_PreInfinity: 2
+    m_PostInfinity: 2
+    m_RotationOrder: 4
+  reverbZoneMixCustomCurve:
+    serializedVersion: 2
+    m_Curve:
+    - serializedVersion: 3
+      time: 0
+      value: 1
+      inSlope: 0
+      outSlope: 0
+      tangentMode: 0
+      weightedMode: 0
+      inWeight: 0.33333334
+      outWeight: 0.33333334
+    m_PreInfinity: 2
+    m_PostInfinity: 2
+    m_RotationOrder: 4
 --- !u!1 &1803165473
 GameObject:
   m_ObjectHideFlags: 0

Assets/Scripts/introCutsceneDialog.cs

@@ -18,7 +18,7 @@ public class introCutsceneDialog : MonoBehaviour
         "K-41: It seems that I've fallen out of my game through a memory leak.",
         "K-41: There should be a portal somewhere down here...",
         "K-41: It should take me home.",
-        "K-41: It probably even has a flashing arrow pointing right at it...",
+        "K-41: It probably even has a flashing arrow pointing at it...",
         "K-41: Anyway... I could really use some help with this...",
         ""
     };

Assets/Scripts/startTrigger.cs

@@ -6,6 +6,7 @@ using UnityEngine;
 public class startTrigger : MonoBehaviour
 {
     private tetrominoSpawnManager TetrominoSpawnManager;
+    private bool gameStarted = false;
     
     // Start is called before the first frame update
     void Start()
@@ -15,10 +16,11 @@ public class startTrigger : MonoBehaviour
 
     private void OnTriggerEnter2D(Collider2D other)
     {
-        if (other.gameObject.tag == "Player")
+        if (other.gameObject.tag == "Player" && !gameStarted)
         {
+            GetComponent<AudioSource>().Play();
             TetrominoSpawnManager.spawnTetromino();
-            gameObject.SetActive(false);
+            gameStarted = true;
         }
     }
 }