diff --git a/public/assets/sound/move_2.wav b/public/assets/sound/move_2.wav
index d69e5e5..0407d8a 100644
Binary files a/public/assets/sound/move_2.wav and b/public/assets/sound/move_2.wav differ
diff --git a/public/assets/sound/move_3.wav b/public/assets/sound/move_3.wav
deleted file mode 100644
index 3ade3bc..0000000
Binary files a/public/assets/sound/move_3.wav and /dev/null differ
diff --git a/public/assets/sound/move_4.wav b/public/assets/sound/move_4.wav
deleted file mode 100644
index 0407d8a..0000000
Binary files a/public/assets/sound/move_4.wav and /dev/null differ
diff --git a/public/assets/sound/music/home.mp3 b/public/assets/sound/music/home.mp3
new file mode 100644
index 0000000..5f51659
Binary files /dev/null and b/public/assets/sound/music/home.mp3 differ
diff --git a/src/App.tsx b/src/App.tsx
index 295b01b..6bd26b9 100644
--- a/src/App.tsx
+++ b/src/App.tsx
@@ -22,11 +22,7 @@ export const App = () => {
       <div className="footer">
         <span>
           built by{" "}
-          <a
-            href="https://git.simponic.xyz/simponic"
-            target="_blank"
-            className="tf"
-          >
+          <a href="https://github.com/simponic" target="_blank" className="tf">
             simponic
           </a>{" "}
           | inspired by{" "}
diff --git a/src/components/Title.tsx b/src/components/Title.tsx
index 99c7584..1736cba 100644
--- a/src/components/Title.tsx
+++ b/src/components/Title.tsx
@@ -7,6 +7,17 @@ export const Title = ({ setReady }: TitleProps) => {
     <div style={{ textAlign: "center" }}>
       <h1>the abstraction engine</h1>
       <p>a game based on the lambda calculus</p>
+      <p>
+        engine{" "}
+        <a
+          href="https://git.simponic.xyz/the-abstraction-engine"
+          target="_blank"
+        >
+          from scratch
+        </a>
+      </p>
+      <br />
+      <p>WASD/arrow keys to move, space/enter to interact</p>
 
       <br />
       <hr />
diff --git a/src/engine/config/sounds.ts b/src/engine/config/sounds.ts
index b182c86..d6c564f 100644
--- a/src/engine/config/sounds.ts
+++ b/src/engine/config/sounds.ts
@@ -9,9 +9,7 @@ export const MovingSound: SoundSpec = {
   name: "moving",
   states: new Map([
     [1, { name: "moving_1", url: "/assets/sound/move_1.wav" }],
-    //    [2, { name: "moving_2", url: "/assets/sound/move_2.wav" }],
-    //    [3, { name: "moving_3", url: "/assets/sound/move_3.wav" }],
-    [4, { name: "moving_4", url: "/assets/sound/move_4.wav" }],
+    [2, { name: "moving_2", url: "/assets/sound/move_2.wav" }],
   ]),
 };
 
@@ -69,6 +67,14 @@ export const Music: SoundSpec = {
         volume: 0.5,
       },
     ],
+    [
+      "home",
+      {
+        name: "home",
+        url: "/assets/sound/music/home.mp3",
+        volume: 0.5,
+      },
+    ],
   ]),
 };
 
diff --git a/src/engine/systems/Grid.ts b/src/engine/systems/Grid.ts
index 9ab28e3..1ec8ed9 100644
--- a/src/engine/systems/Grid.ts
+++ b/src/engine/systems/Grid.ts
@@ -116,7 +116,12 @@ export class Grid extends System {
       const moving = new Set<string>();
       moving.add(entity.id);
 
-      while (!this.isOutOfBounds(nextGridPosition)) {
+      while (true) {
+        if (this.isOutOfBounds(nextGridPosition)) {
+          moving.clear();
+          break;
+        }
+
         const { x, y } = nextGridPosition;
         const entities = Array.from(this.grid[y][x]).map(
           (id) => game.getEntity(id)!,