diff --git a/src/net/torvald/terrarum/AppLoader.java b/src/net/torvald/terrarum/AppLoader.java
index ff7c5d725..601f57692 100644
--- a/src/net/torvald/terrarum/AppLoader.java
+++ b/src/net/torvald/terrarum/AppLoader.java
@@ -435,6 +435,11 @@ public class AppLoader implements ApplicationListener {
         IngameRenderer.INSTANCE.dispose();
         if (Controllers.isCreated()) Controllers.destroy();
 
+        Terrarum.INSTANCE.dispose();
+
+        fontGame.dispose();
+        fontSmallNumbers.dispose();
+
         // delete temp files
         new File("./tmp_wenquanyi.tga").delete(); // FIXME this is pretty much ad-hoc
     }
diff --git a/src/net/torvald/terrarum/LoadScreen.kt b/src/net/torvald/terrarum/LoadScreen.kt
index a1ac2e7cf..f2627b535 100644
--- a/src/net/torvald/terrarum/LoadScreen.kt
+++ b/src/net/torvald/terrarum/LoadScreen.kt
@@ -313,7 +313,6 @@ object LoadScreen : ScreenAdapter() {
     }
 
     override fun hide() {
-        dispose()
     }
 
     override fun resize(width: Int, height: Int) {
diff --git a/src/net/torvald/terrarum/Terrarum.kt b/src/net/torvald/terrarum/Terrarum.kt
index cf40a1cd6..e61f62873 100644
--- a/src/net/torvald/terrarum/Terrarum.kt
+++ b/src/net/torvald/terrarum/Terrarum.kt
@@ -401,24 +401,15 @@ object Terrarum : Screen {
         AppLoader.getINSTANCE().screen.resume()
     }
 
+    /** Don't call this! Call AppLoader.dispose() */
     override fun dispose() {
-        AppLoader.getINSTANCE().screen.dispose()
-
-        fontGame.dispose()
-        fontSmallNumbers.dispose()
-
-
         //dispose any other resources used in this level
-
-
         shaderBayer.dispose()
         shaderSkyboxFill.dispose()
         shaderBlur.dispose()
         shaderBlendGlow.dispose()
 
-
-        shapeRender.dispose()
-        batch.dispose()
+        ingame?.dispose()
     }
 
     override fun hide() {
diff --git a/src/net/torvald/terrarum/UIItemInventoryCatBar.kt b/src/net/torvald/terrarum/UIItemInventoryCatBar.kt
index 264b6d2d0..071a57a87 100644
--- a/src/net/torvald/terrarum/UIItemInventoryCatBar.kt
+++ b/src/net/torvald/terrarum/UIItemInventoryCatBar.kt
@@ -105,7 +105,7 @@ class UIItemInventoryCatBar(
 
     private val highlighterYPos = catIcons.tileH + 4f
     private var highlighterMoving = false
-    private val highlighterMoveDuration: Second = 0.1f
+    private val highlighterMoveDuration: Second = 0.15f
     private var highlighterMoveTimer: Second = 0f
 
     private var transitionFired = false
diff --git a/src/net/torvald/terrarum/Yaml.kt b/src/net/torvald/terrarum/Yaml.kt
index a11b8c94d..050b9f081 100644
--- a/src/net/torvald/terrarum/Yaml.kt
+++ b/src/net/torvald/terrarum/Yaml.kt
@@ -123,7 +123,10 @@ inline class Yaml(val text: String) {
                     val nodeString = it.drop(2)
                     val nodeNameAndInvocation = nodeString.split(SEPARATOR)
                     val nodeName = nodeNameAndInvocation[0]
-                    val nodeInvocation = loadClass(nodeNameAndInvocation[1])
+                    val nodeInvocation = if (nodeNameAndInvocation.size == 2)
+                        loadClass(nodeNameAndInvocation[1])
+                    else
+                        null
 
                     val nameInvokePair = nodeName to nodeInvocation
 
@@ -193,5 +196,5 @@ inline class Yaml(val text: String) {
  *
  */
 interface YamlInvokable {
-    operator fun invoke()
+    operator fun invoke(vararg args: Any?)
 }
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/console/QuitApp.kt b/src/net/torvald/terrarum/console/QuitApp.kt
index a4be55bff..aef0445ab 100644
--- a/src/net/torvald/terrarum/console/QuitApp.kt
+++ b/src/net/torvald/terrarum/console/QuitApp.kt
@@ -1,6 +1,6 @@
 package net.torvald.terrarum.console
 
-import net.torvald.terrarum.console.ConsoleCommand
+import com.badlogic.gdx.Gdx
 
 /**
  * Created by minjaesong on 2016-01-15.
@@ -8,7 +8,7 @@ import net.torvald.terrarum.console.ConsoleCommand
 internal object QuitApp : ConsoleCommand {
 
     override fun execute(args: Array<String>) {
-        System.exit(1)
+        Gdx.app.exit()
     }
 
     override fun printUsage() {
diff --git a/src/net/torvald/terrarum/modulebasegame/BuildingMaker.kt b/src/net/torvald/terrarum/modulebasegame/BuildingMaker.kt
index f5b5c07e9..7817179bb 100644
--- a/src/net/torvald/terrarum/modulebasegame/BuildingMaker.kt
+++ b/src/net/torvald/terrarum/modulebasegame/BuildingMaker.kt
@@ -4,10 +4,7 @@ import com.badlogic.gdx.Gdx
 import com.badlogic.gdx.InputAdapter
 import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
-import net.torvald.terrarum.AppLoader
-import net.torvald.terrarum.IngameInstance
-import net.torvald.terrarum.Terrarum
-import net.torvald.terrarum.Yaml
+import net.torvald.terrarum.*
 import net.torvald.terrarum.blockproperties.Block
 import net.torvald.terrarum.gameactors.*
 import net.torvald.terrarum.gamecontroller.KeyToggler
@@ -20,7 +17,6 @@ import net.torvald.terrarum.ui.UINSMenu
 import net.torvald.terrarum.worlddrawer.LightmapRenderer
 import net.torvald.terrarum.worlddrawer.WorldCamera
 import net.torvald.terrarumsansbitmap.gdx.TextureRegionPack
-import kotlin.system.measureNanoTime
 
 /**
  * Created by minjaesong on 2018-07-06.
@@ -35,6 +31,7 @@ class BuildingMaker(batch: SpriteBatch) : IngameInstance(batch) {
  - Import…
  - Save world…
  - Load world…
+ - Exit to Title : net.torvald.terrarum.modulebasegame.YamlCommandExit
 - Tool
  - Pencil
  - Eyedropper
@@ -135,6 +132,7 @@ class BuildingMaker(batch: SpriteBatch) : IngameInstance(batch) {
 
         uiToolbox.setPosition(0, 0)
         uiToolbox.isVisible = true
+
         notifier.setPosition(
                 (Terrarum.WIDTH - notifier.width) / 2, Terrarum.HEIGHT - notifier.height)
 
@@ -259,4 +257,10 @@ class MovableWorldCamera : ActorHumanoid(0, usePhysics = false) {
     override fun onActorValueChange(key: String, value: Any?) {
     }
 
+}
+
+class YamlCommandExit : YamlInvokable {
+    override fun invoke(vararg args: Any?) {
+        Terrarum.setScreen(TitleScreen(Terrarum.batch))
+    }
 }
\ No newline at end of file
diff --git a/src/net/torvald/terrarum/modulebasegame/Ingame.kt b/src/net/torvald/terrarum/modulebasegame/Ingame.kt
index 9c283f711..b130bec95 100644
--- a/src/net/torvald/terrarum/modulebasegame/Ingame.kt
+++ b/src/net/torvald/terrarum/modulebasegame/Ingame.kt
@@ -22,8 +22,6 @@ import net.torvald.terrarum.modulebasegame.gameactors.*
 import net.torvald.terrarum.modulebasegame.gameactors.physicssolver.CollisionSolver
 import net.torvald.terrarum.modulebasegame.gameworld.GameWorldExtension
 import net.torvald.terrarum.modulebasegame.gameworld.WorldSimulator
-import net.torvald.terrarum.modulebasegame.imagefont.Watch7SegMain
-import net.torvald.terrarum.modulebasegame.imagefont.WatchDotAlph
 import net.torvald.terrarum.modulebasegame.ui.*
 import net.torvald.terrarum.modulebasegame.weather.WeatherMixer
 import net.torvald.terrarum.modulebasegame.worldgenerator.RoguelikeRandomiser
@@ -890,7 +888,7 @@ open class Ingame(batch: SpriteBatch) : IngameInstance(batch) {
     }
 
     override fun hide() {
-        dispose()
+        uiContainer.forEach { it.handler.dispose() }
     }
 
 
@@ -943,26 +941,16 @@ open class Ingame(batch: SpriteBatch) : IngameInstance(batch) {
     }
 
     override fun dispose() {
-        IngameRenderer.dispose()
-
         actorsRenderBehind.forEach { it.dispose() }
         actorsRenderMiddle.forEach { it.dispose() }
         actorsRenderMidTop.forEach { it.dispose() }
         actorsRenderFront.forEach { it.dispose() }
         actorsRenderOverlay.forEach { it.dispose() }
 
-        uiAliases.forEach { it.dispose() }
-        uiAliasesPausing.forEach { it.dispose() }
-
-
-        WatchDotAlph.dispose()
-        Watch7SegMain.dispose()
-        WatchDotAlph.dispose()
-
-        ItemSlotImageFactory.dispose()
-
-        MessageWindow.SEGMENT_BLACK.dispose()
-        MessageWindow.SEGMENT_WHITE.dispose()
+        uiContainer.forEach {
+            it.handler.dispose()
+            it.dispose()
+        }
     }
 
 
diff --git a/src/net/torvald/terrarum/modulebasegame/ui/UIInventoryFull.kt b/src/net/torvald/terrarum/modulebasegame/ui/UIInventoryFull.kt
index 29ab78bf9..e746506ed 100644
--- a/src/net/torvald/terrarum/modulebasegame/ui/UIInventoryFull.kt
+++ b/src/net/torvald/terrarum/modulebasegame/ui/UIInventoryFull.kt
@@ -135,7 +135,7 @@ class UIInventoryFull(
     private var transitionReqSource = SCREEN_INVENTORY
     private var transitionReqTarget = SCREEN_INVENTORY
     private var transitionTimer = 0f
-    private val transitionLength = 0.333f
+    private val transitionLength = 0.212f
 
 
     private val transitionalUpdateUIs = ArrayList<UIItem>()
@@ -174,6 +174,16 @@ class UIInventoryFull(
         addToTransitionalGroup(itemList)
         addToTransitionalGroup(equipped)
         addToTransitionalGroup(gameMenuButtons)
+
+        // make gameMenuButtons work
+        gameMenuButtons.selectionChangeListener = { old, new ->
+            if (new == 0) {
+                Terrarum.setScreen(TitleScreen(Terrarum.batch))
+            }
+            else if (new == 1) {
+                Gdx.app.exit()
+            }
+        }
     }
 
     private var offsetX = ((Terrarum.WIDTH - internalWidth)   / 2).toFloat()
diff --git a/src/net/torvald/terrarum/ui/UICanvas.kt b/src/net/torvald/terrarum/ui/UICanvas.kt
index b6f676543..0d1e5994a 100644
--- a/src/net/torvald/terrarum/ui/UICanvas.kt
+++ b/src/net/torvald/terrarum/ui/UICanvas.kt
@@ -3,6 +3,7 @@ package net.torvald.terrarum.ui
 import com.badlogic.gdx.Gdx
 import com.badlogic.gdx.graphics.Camera
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
+import com.badlogic.gdx.utils.Disposable
 import net.torvald.terrarum.AppLoader
 import net.torvald.terrarum.Second
 import net.torvald.terrarum.Terrarum
@@ -21,7 +22,7 @@ abstract class UICanvas(
         // UI positions itself? (you must g.flush() yourself after the g.translate(Int, Int))
         customPositioning: Boolean = false, // mainly used by vital meter
         doNotWarnConstant: Boolean = false
-) {
+): Disposable {
 
     abstract var width: Int
     abstract var height: Int
@@ -36,7 +37,7 @@ abstract class UICanvas(
     /**
      * Usage: (in StateInGame:) uiHandlerField.ui.handler = uiHandlerField
      */
-    protected val handler = UIHandler(toggleKeyLiteral, toggleButtonLiteral, customPositioning, doNotWarnConstant)
+    val handler = UIHandler(toggleKeyLiteral, toggleButtonLiteral, customPositioning, doNotWarnConstant)
 
     init {
 
@@ -111,7 +112,7 @@ abstract class UICanvas(
      */
     abstract fun endClosing(delta: Float)
 
-    abstract fun dispose()
+    abstract override fun dispose()
 
     fun addItem(uiItem: UIItem) {
         uiItems.add(uiItem)
diff --git a/src/net/torvald/terrarum/ui/UIHandler.kt b/src/net/torvald/terrarum/ui/UIHandler.kt
index 4c5fc87f4..a5f50d0a9 100644
--- a/src/net/torvald/terrarum/ui/UIHandler.kt
+++ b/src/net/torvald/terrarum/ui/UIHandler.kt
@@ -3,8 +3,9 @@ package net.torvald.terrarum.ui
 import com.badlogic.gdx.graphics.Camera
 import com.badlogic.gdx.graphics.Color
 import com.badlogic.gdx.graphics.g2d.SpriteBatch
-import net.torvald.terrarum.modulebasegame.Ingame
+import com.badlogic.gdx.utils.Disposable
 import net.torvald.terrarum.gamecontroller.KeyToggler
+import net.torvald.terrarum.modulebasegame.Ingame
 
 /**
  * UIHandler is a handler for UICanvas. It opens/closes the attached UI, moves the "window" (or "canvas")
@@ -20,7 +21,7 @@ class UIHandler(//var UI: UICanvas,
                 // UI positions itself? (you must g.flush() yourself after the g.translate(Int, Int))
                 var customPositioning: Boolean = false, // mainly used by vital meter
                 var doNotWarnConstant: Boolean = false
-) {
+): Disposable {
 
     // X/Y Position relative to the game window.
     var posX: Int = 0
@@ -341,4 +342,10 @@ class UIHandler(//var UI: UICanvas,
             return false
         }
     }
+
+    /** Don't dispose common assets, this function is called when the ingame does hide() */
+    override fun dispose() {
+        toggleKey?.let { KeyToggler.forceSet(it, false) }
+        toggleButton?.let { /* ButtonToggler.forceSet(it, false) */ }
+    }
 }
diff --git a/src/net/torvald/terrarum/ui/UINSMenu.kt b/src/net/torvald/terrarum/ui/UINSMenu.kt
index efbe611b2..56f922108 100644
--- a/src/net/torvald/terrarum/ui/UINSMenu.kt
+++ b/src/net/torvald/terrarum/ui/UINSMenu.kt
@@ -13,6 +13,7 @@ import net.torvald.terrarum.*
 class UINSMenu(
         var title: String = "",
         val minimumWidth: Int,
+        /** Optional instance of YamlInvokable can be used */
         treeRepresentation: Yaml,
 
         val titleBackCol: Color = Color(0f,0f,0f,.77f),
@@ -29,7 +30,7 @@ class UINSMenu(
     val CHILD_ARROW = "${0x2023.toChar()}"
 
 
-    val tree = treeRepresentation.parse()
+    val tree = treeRepresentation.parseAsYamlInvokable()
     override var width = 0
     override var height = 0
     //override var width = maxOf(minimumWidth, tree.getLevelData(1).map { Terrarum.fontGame.getWidth(it ?: "") }.max() ?: 0)
@@ -53,10 +54,10 @@ class UINSMenu(
         addSubMenu(tree)
     }
 
-    private fun addSubMenu(tree: QNDTreeNode<String>) {
-        val menuTitle = tree.data ?: title
+    private fun addSubMenu(tree: QNDTreeNode<Pair<String, YamlInvokable?>>) {
+        val menuTitle = tree.data?.first ?: title
         val stringsFromTree = Array<String>(tree.children.size) {
-            tree.children[it].toString() + if (tree.children[it].children.isNotEmpty()) "  $CHILD_ARROW" else ""
+            tree.children[it].data?.first + if (tree.children[it].children.isNotEmpty()) "  $CHILD_ARROW" else ""
         }
 
         val listWidth = maxOf(
@@ -98,6 +99,10 @@ class UINSMenu(
             if (tree.children[new].children.isNotEmpty()) {
                 addSubMenu(tree.children[new])
             }
+
+            // invoke whatever command there is
+            //printdbg(this, "Selected: ${tree.children[new].data?.second}")
+            tree.children[new].data?.second?.invoke()
         }
         // END List selection change listener