diff --git a/.idea/.name b/.idea/.name
deleted file mode 100644
index ae652224d..000000000
--- a/.idea/.name
+++ /dev/null
@@ -1 +0,0 @@
-Terrarum_renewed
\ No newline at end of file
diff --git a/COPYING.md b/COPYING.md
index 38c227e9a..d9adde496 100644
--- a/COPYING.md
+++ b/COPYING.md
@@ -1,6 +1,6 @@
 *Terrarum*
 
-Copyright (C) 2013-2022 Minjae Song ("CuriousTorvald")
+Copyright (C) 2013-2023 Minjae Song ("CuriousTorvald")
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
diff --git a/src/net/torvald/terrarum/App.java b/src/net/torvald/terrarum/App.java
index a15aadf96..8d2fd8d03 100644
--- a/src/net/torvald/terrarum/App.java
+++ b/src/net/torvald/terrarum/App.java
@@ -39,6 +39,9 @@ import net.torvald.terrarum.utils.JsonFetcher;
 import net.torvald.terrarum.worlddrawer.CreateTileAtlas;
 import net.torvald.terrarumsansbitmap.gdx.TerrarumSansBitmap;
 import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack;
+import net.torvald.unsafe.AddressOverflowException;
+import net.torvald.unsafe.DanglingPointerException;
+import net.torvald.unsafe.UnsafeHelper;
 import net.torvald.util.DebugTimers;
 
 import java.io.File;
@@ -71,12 +74,6 @@ public class App implements ApplicationListener {
      */
     public static boolean IS_DEVELOPMENT_BUILD = false;
 
-    {
-        // if -ea flag is set, turn on all the debug prints
-        try { assert (false); }
-        catch (AssertionError e) { IS_DEVELOPMENT_BUILD = true; }
-    }
-
     /**
      * Singleton instance
      */
@@ -314,23 +311,23 @@ public class App implements ApplicationListener {
     }
 
     public static void main(String[] args) {
+
+        // if -ea flag is set, turn on all the debug prints
+        try {
+            assert false;
+        }
+        catch (AssertionError e) {
+            IS_DEVELOPMENT_BUILD = true;
+        }
+
+
         // print copyright message
         System.out.println(csiB+GAME_NAME+" "+csiG+getVERSION_STRING()+" "+csiK+"\u2014"+" "+csi0+TerrarumAppConfiguration.COPYRIGHT_DATE_NAME);
         System.out.println(csiG+TerrarumAppConfiguration.COPYRIGHT_LICENSE_TERMS_SHORT+csi0);
-
+        System.out.println("IS_DEVELOPMENT_BUILD = " + IS_DEVELOPMENT_BUILD);
 
         try {
 
-
-            // load configs
-            getDefaultDirectory();
-            createDirs();
-            initialiseConfig();
-            readConfigJson();
-
-            setGamepadButtonLabels();
-
-
             try {
                 processor = GetCpuName.getModelName();
             }
@@ -345,6 +342,26 @@ public class App implements ApplicationListener {
             }
 
 
+            if (!IS_DEVELOPMENT_BUILD) {
+                var p = UnsafeHelper.INSTANCE.allocate(64);
+                p.destroy();
+                try {
+                    p.get(0);
+                }
+                catch (DanglingPointerException | AddressOverflowException e) {
+                    throw new RuntimeException("Build Error: App is not Development Build but pointer check is still installed. If the game is a production release, please report this to the developers.");
+                }
+            }
+
+
+            // load configs
+            getDefaultDirectory();
+            createDirs();
+            initialiseConfig();
+            readConfigJson();
+            setGamepadButtonLabels();
+
+
             ShaderProgram.pedantic = false;
 
             scr = new TerrarumScreenSize(getConfigInt("screenwidth"), getConfigInt("screenheight"));
diff --git a/src/net/torvald/terrarum/CreditSingleton.kt b/src/net/torvald/terrarum/CreditSingleton.kt
index 7f6f3a6d2..7a52dfb57 100644
--- a/src/net/torvald/terrarum/CreditSingleton.kt
+++ b/src/net/torvald/terrarum/CreditSingleton.kt
@@ -16,7 +16,7 @@ object CreditSingleton {
 
 $BULLET Terrarum
 
-Copyright (C) 2013-2022 CuriousTorvald (minjaesong)
+Copyright (C) 2013-2023 CuriousTorvald (minjaesong)
 
 This program is free software: you can redistribute it and/or modify
 it under the terms of the GNU General Public License as published by
diff --git a/src/net/torvald/terrarum/TerrarumPostProcessor.kt b/src/net/torvald/terrarum/TerrarumPostProcessor.kt
index d924afc06..dc44b7678 100644
--- a/src/net/torvald/terrarum/TerrarumPostProcessor.kt
+++ b/src/net/torvald/terrarum/TerrarumPostProcessor.kt
@@ -332,7 +332,7 @@ object TerrarumPostProcessor : Disposable {
     private val currentResStr = "${App.scr.width}x${App.scr.height}"
     private val safeAreaStr = "TV Safe Area"
     private val versionStr = "Version ${App.getVERSION_STRING()}"
-    internal val thisIsDebugStr = "${App.GAME_NAME} Develoment Build $versionStr"
+    internal val thisIsDebugStr = "${App.GAME_NAME} Development Build $versionStr"
 
     /**
      * Camera will be moved so that (newX, newY) would be sit on the top-left edge.
diff --git a/src/net/torvald/terrarum/modulebasegame/TitleScreen.kt b/src/net/torvald/terrarum/modulebasegame/TitleScreen.kt
index 5da9a4e47..19ad96373 100644
--- a/src/net/torvald/terrarum/modulebasegame/TitleScreen.kt
+++ b/src/net/torvald/terrarum/modulebasegame/TitleScreen.kt
@@ -326,6 +326,7 @@ class TitleScreen(batch: FlippingSpriteBatch) : IngameInstance(batch) {
             )
         }
 
+        batch.color = if (App.IS_DEVELOPMENT_BUILD) Toolkit.Theme.COL_MOUSE_UP else Color.LIGHT_GRAY
         App.fontGame.draw(batch, TerrarumPostProcessor.thisIsDebugStr, 5f, App.scr.height - 24f)
 
 
diff --git a/src/net/torvald/unsafe/UnsafePtr.kt b/src/net/torvald/unsafe/UnsafePtr.kt
index 7479857cf..a3e127287 100644
--- a/src/net/torvald/unsafe/UnsafePtr.kt
+++ b/src/net/torvald/unsafe/UnsafePtr.kt
@@ -112,8 +112,9 @@ internal class UnsafePtr(pointer: Long, allocSize: Long) {
         // You may break the glass and use this tool when some fucking incomprehensible bugs ("vittujen vitun bugit")
         // appear (e.g. getting garbage values when it fucking shouldn't)
 
-        assert(!destroyed) { throw DanglingPointerException("The pointer is already destroyed ($this)") }
-        assert(index in 0 until size) { throw AddressOverflowException("Index: $index; alloc size: $size") }
+        // using ifs instead of assertions: inactive assert statements still slows down the app
+        if (destroyed) { throw DanglingPointerException("The pointer is already destroyed ($this)") }
+        if (index !in 0 until size) { throw AddressOverflowException("Index: $index; alloc size: $size") }
     }
 
     operator fun get(index: Long): Byte {