Add NPC and Power-Up features with associated prefabs and effects

Assets/Scenes/SampleScene.unity

@@ -632,6 +632,7 @@ MonoBehaviour:
   deathPlanePrefab: {fileID: 6985639713120889316, guid: b25f4148dc4e46617b9f0cb6403de754, type: 3}
   soundManager: {fileID: 1341134052}
   cameraController: {fileID: 1265730430}
+  npcPrefab: {fileID: 6083523108754401876, guid: 4b3d84858334857368bde30df360ae3e, type: 3}
   floorsCount: 3
   floorHeightDistance: 15
   scoreText: {fileID: 412275999}
@@ -639,6 +640,8 @@ MonoBehaviour:
   gameOverUi: {fileID: 87831902}
   startScreenUi: {fileID: 1763855010}
   restartTime: 3
+  lightFootedPrefab: {fileID: 2639250404559520579, guid: 4ce47d492ed71cb5b9390762eab7a749, type: 3}
+  speedBoostPrefab: {fileID: 2639250404559520579, guid: 32d69de3e08c76e63a4b5086b87b12df, type: 3}
 --- !u!4 &453022421
 Transform:
   m_ObjectHideFlags: 0
@@ -882,6 +885,7 @@ GameObject:
   m_Component:
   - component: {fileID: 1341134054}
   - component: {fileID: 1341134053}
+  - component: {fileID: 1341134055}
   - component: {fileID: 1341134052}
   m_Layer: 0
   m_Name: Audio System
@@ -908,8 +912,9 @@ MonoBehaviour:
   gameOverClip: {fileID: 0}
   tileWarningClip: {fileID: 0}
   tileBreakClip: {fileID: 0}
+  npcSpawnClip: {fileID: 0}
   musicSource: {fileID: 1341134053}
-  sfxSource: {fileID: 1341134053}
+  sfxSource: {fileID: 1341134055}
 --- !u!82 &1341134053
 AudioSource:
   m_ObjectHideFlags: 0
@@ -1022,6 +1027,103 @@ Transform:
   m_Children: []
   m_Father: {fileID: 0}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
+--- !u!82 &1341134055
+AudioSource:
+  m_ObjectHideFlags: 0
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
+  m_GameObject: {fileID: 1341134051}
+  m_Enabled: 1
+  serializedVersion: 4
+  OutputAudioMixerGroup: {fileID: 0}
+  m_audioClip: {fileID: 0}
+  m_Resource: {fileID: 0}
+  m_PlayOnAwake: 1
+  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 &1454679069
 GameObject:
   m_ObjectHideFlags: 0