Retouched the Material a bit and the TrashMaze prefab.

Assets/Prefabs/Levels/Dump/RevealableObject.prefab

@@ -12,7 +12,7 @@ GameObject:
   - component: {fileID: 6487644332527623320}
   - component: {fileID: 397845239581813408}
   - component: {fileID: 3115580033298799659}
-  m_Layer: 0
+  m_Layer: 6
   m_Name: RevealableObject
   m_TagString: Untagged
   m_Icon: {fileID: 0}
@@ -29,8 +29,8 @@ Transform:
   serializedVersion: 2
   m_LocalRotation: {x: 0, y: 0, z: 0, w: 1}
   m_LocalPosition: {x: 0, y: 0, z: 0}
-  m_LocalScale: {x: 1, y: 1, z: 1}
-  m_ConstrainProportionsScale: 0
+  m_LocalScale: {x: 1.48, y: 1.48, z: 1.48}
+  m_ConstrainProportionsScale: 1
   m_Children: []
   m_Father: {fileID: 0}
   m_LocalEulerAnglesHint: {x: 0, y: 0, z: 0}
@@ -60,7 +60,7 @@ SpriteRenderer:
   m_RenderingLayerMask: 1
   m_RendererPriority: 0
   m_Materials:
-  - {fileID: 2100000, guid: 07b06abfc5d910b4a8c525979cd29f29, type: 2}
+  - {fileID: 2100000, guid: 6e053220514a0c64883d9484863533fe, type: 2}
   m_StaticBatchInfo:
     firstSubMesh: 0
     subMeshCount: 0
@@ -81,7 +81,7 @@ SpriteRenderer:
   m_GlobalIlluminationMeshLod: 0
   m_SortingLayerID: 0
   m_SortingLayer: 0
-  m_SortingOrder: 0
+  m_SortingOrder: 5
   m_MaskInteraction: 0
   m_Sprite: {fileID: -9213196934004512817, guid: 22bb2c64be7aa8e438277c533ecb8bee, type: 3}
   m_Color: {r: 1, g: 1, b: 1, a: 1}
@@ -105,8 +105,10 @@ MonoBehaviour:
   m_Script: {fileID: 11500000, guid: f6a7b8c9d0e1f2a3b4c5d6e7f8a9b0c1, type: 3}
   m_Name: 
   m_EditorClassIdentifier: AppleHillsScripts::Minigames.TrashMaze.Objects.RevealableObject
+  revealMode: 1
   normalSprite: {fileID: -9213196934004512817, guid: 22bb2c64be7aa8e438277c533ecb8bee, type: 3}
   outlineSprite: {fileID: 8669786265954709882, guid: 0559a1e87cd8a434f9647206f5ea237e, type: 3}
+  stampWorldRadius: 1.5
   isBoosterPack: 0
   isExit: 0
 --- !u!61 &3115580033298799659