diff --git a/src/css/ingame_hud/buildings_toolbar.scss b/src/css/ingame_hud/buildings_toolbar.scss
index af9001bb..3af5edf4 100644
--- a/src/css/ingame_hud/buildings_toolbar.scss
+++ b/src/css/ingame_hud/buildings_toolbar.scss
@@ -104,29 +104,28 @@
                     &.pressed {
                         transform: scale(0.9) !important;
                     }
+                }
+                &.selected {
+                    // transform: scale(1.05);
+                    background-color: rgba(lighten($colorBlueBright, 9), 0.4);
+                    @include S(border-radius, 2px);
 
-                    &.selected {
-                        // transform: scale(1.05);
-                        background-color: rgba(lighten($colorBlueBright, 9), 0.4);
-
-                        .keybinding {
-                            color: #111;
-                        }
+                    .keybinding {
+                        color: #111;
                     }
                 }
 
                 .puzzle-lock {
                     & {
                         /* @load-async */
-                        background: uiResource("locked_building.png") center center / #{D(14px)} #{D(14px)}
-                            no-repeat;
+                        background: uiResource("locked_building.png") center center / 90% no-repeat;
                     }
 
                     display: grid;
                     grid-auto-flow: column;
 
                     position: absolute;
-                    top: -30px;
+                    @include S(top, -15px);
                     left: 50%;
                     transform: translateX(-50%) !important;
                     transition: all 0.12s ease-in-out;
@@ -135,8 +134,8 @@
                     cursor: pointer;
                     pointer-events: all;
 
-                    @include S(width, 14px);
-                    @include S(height, 14px);
+                    @include S(width, 12px);
+                    @include S(height, 12px);
 
                     &:hover {
                         opacity: 0.5;
diff --git a/src/js/states/main_menu.js b/src/js/states/main_menu.js
index 04c47998..49fae145 100644
--- a/src/js/states/main_menu.js
+++ b/src/js/states/main_menu.js
@@ -92,7 +92,7 @@ export class MainMenuState extends GameState {
                 </div>
 
                 ${
-                    G_IS_STANDALONE && puzzleDlc
+                    (G_IS_STANDALONE && puzzleDlc) || G_IS_DEV
                         ? `
                     <div class="puzzleContainer">
                         <img class="dlcLogo" src="${cachebust(
diff --git a/src/js/states/puzzle_menu.js b/src/js/states/puzzle_menu.js
index 6122021b..5e378211 100644
--- a/src/js/states/puzzle_menu.js
+++ b/src/js/states/puzzle_menu.js
@@ -6,6 +6,7 @@ import { TextualGameState } from "../core/textual_game_state";
 import { formatBigNumberFull } from "../core/utils";
 import { enumGameModeIds } from "../game/game_mode";
 import { ShapeDefinition } from "../game/shape_definition";
+import { MUSIC } from "../platform/sound";
 import { Savegame } from "../savegame/savegame";
 import { T } from "../translations";
 
@@ -59,6 +60,10 @@ export class PuzzleMenuState extends TextualGameState {
         this.activeCategory = "";
     }
 
+    getThemeMusic() {
+        return MUSIC.puzzle;
+    }
+
     getStateHeaderTitle() {
         return T.puzzleMenu.title;
     }
diff --git a/translations/base-en.yaml b/translations/base-en.yaml
index 3aef4beb..5291a304 100644
--- a/translations/base-en.yaml
+++ b/translations/base-en.yaml
@@ -622,8 +622,9 @@ ingame:
             - 1. Place <strong>Constant Producers</strong> to provide shapes and colors to the player
             - 2. Build one or more shapes you want the player to build later and deliver it to one or more <strong>Goal Acceptors</strong>
             - 3. Once a Goal Acceptor receives a shape for a certain amount of time, it <strong>saves it as a goal</strong> that the player must produce later (Indicated by the <strong>green badge</strong>).
-            - 4. Once you click review, your puzzle will be validated and you can publish it.
-            - 5. Upon release, <strong>all buildings will be removed</strong> except for the Producers and Goal Acceptors - That's the part that the player is supposed to figure out for themselves, after all :)
+            - 4. Click the <strong>lock button</strong> on a building to disable it.
+            - 5. Once you click review, your puzzle will be validated and you can publish it.
+            - 6. Upon release, <strong>all buildings will be removed</strong> except for the Producers and Goal Acceptors - That's the part that the player is supposed to figure out for themselves, after all :)
 
     puzzleCompletion:
         title: Puzzle Completed!