diff --git a/twentyfortyeight/src/twentyfortyeight/Main.java b/twentyfortyeight/src/twentyfortyeight/Main.java
index 49bdbfc..bdc65fa 100644
--- a/twentyfortyeight/src/twentyfortyeight/Main.java
+++ b/twentyfortyeight/src/twentyfortyeight/Main.java
@@ -11,7 +11,7 @@ import tester.Tester;
 
 class Examples {
     void testRun(Tester t) {
-        Game game = new Game(2);
+        Game game = new Game();
         game.run();
     }
 }
@@ -43,11 +43,11 @@ class Util {
 
 // A game of 2048.
 class Game extends World {
-    int score;        // The current score.
-    int sz;           // The size of the grid.
-    int width;        // The width of the image in pixels.
-    Board board;      // The game board.
-    boolean gameOver; // Whether the game is over
+    int score;   // The current score.
+    int sz;      // The size of the grid.
+    int width;   // The width of the image in pixels.
+    Board board; // The game board.
+    boolean gameOver;
 
     Game(int score, int sz, int width, Board board) {
         this.score = score;
@@ -85,18 +85,15 @@ class Game extends World {
             this.width / 2, 20
         );
 
-        // Display game over message if the game is over
-        if (this.gameOver) {
-            WorldImage gameOverText =
-                new TextImage("Game Over!", 40, Color.RED);
-            WorldImage background = new RectangleImage(
-                this.width / 2, 50, OutlineMode.SOLID, new Color(0, 0, 0, 150)
-            );
+        // Display loss message.
+        if (this.gameOver)
             scene.placeImageXY(
-                new OverlayImage(gameOverText, background), this.width / 2,
-                this.width / 2
+                new TextImage(
+                    "Game over. Score: " + this.score + ". [R] to restart.", 20,
+                    Color.RED
+                ),
+                this.width / 2, this.width / 2
             );
-        }
 
         return scene;
     }
@@ -104,9 +101,9 @@ class Game extends World {
     public void onKeyEvent(String key) {
         System.out.println("got key" + key);
 
-        // If game is over, ignore movement keys
+        // If game over, ignore movement keys.
         if (this.gameOver) {
-            // Optional: restart game with 'r' key
+            // Restart game with 'r'.
             if (key.equals("r")) {
                 this.score = 0;
                 this.board = new Board(this.sz);
@@ -131,7 +128,7 @@ class Game extends World {
 
         this.score += score;
 
-        // Check if game is over after the move
+        // Check if game over after move.
         this.gameOver = this.board.isGameOver();
     }
 
@@ -200,7 +197,7 @@ class Board {
         }
     }
 
-    // Try to combine two tiles if they have the same value
+    // Try to combine two tiles.
     int tryCombine(Coord source, Coord target) {
         Cell sourceCell = this.get(source);
         Cell targetCell = this.get(target);
@@ -247,21 +244,19 @@ class Board {
         if (next.x >= 0 && next.x < this.sz && next.y >= 0 && next.y < this.sz)
             return this.tryCombine(current, next);
 
-        // Only generate new tile if changed.
-        if (boardChanged) this.randGen();
-
         return 0;
     }
 
     // Move in the given direction. Returns the generated score.
     int move(Move move) {
-        System.out.println("moving");
-
         // Reset flags for all tiles and change tracker.
         resetFlags();
+        this.boardChanged = false;
 
         int score = 0;
-        for (int i = 0; i < this.sz; i++) { score += this.moveLine(i, move); }
+        for (int i = 0; i < this.sz; i++) score += this.moveLine(i, move);
+
+        if (this.boardChanged) this.randGen();
 
         return score;
     }
@@ -316,49 +311,42 @@ class Board {
         }
     }
 
-    // Checks if the game is over (no valid moves left)
+    // Check if game over.
     boolean isGameOver() {
-        // Check if there are any empty spaces
-        for (int x = 0; x < this.sz; x++) {
-            for (int y = 0; y < this.sz; y++) {
-                if (this.get(new Coord(x, y)).isReplaceable()) {
-                    return false; // There's an empty space, game not over
-                }
-            }
-        }
+        for (int x = 0; x < this.sz; x++)
+            for (int y = 0; y < this.sz; y++)
+                if (this.get(new Coord(x, y)).isReplaceable())
+                    return false; // There's an empty space, game not over.
 
-        // Check if any adjacent tiles can be combined
+        // Check if any adjacent tiles can be combined.
         for (int x = 0; x < this.sz; x++) {
             for (int y = 0; y < this.sz; y++) {
                 Cell current = this.get(new Coord(x, y));
 
-                // Skip if not a tile
-                if (!(current instanceof Tile)) { continue; }
+                // Skip if not tile.
+                if (!(current instanceof Tile)) continue;
 
                 Tile currentTile = (Tile)current;
 
-                // Check right neighbor
                 if (x < this.sz - 1) {
                     Cell right = this.get(new Coord(x + 1, y));
                     if (right instanceof Tile &&
                         ((Tile)right).n == currentTile.n) {
-                        return false; // Can combine horizontally
+                        return false; // Can combine horizontally.
                     }
                 }
 
-                // Check bottom neighbor
                 if (y < this.sz - 1) {
                     Cell bottom = this.get(new Coord(x, y + 1));
                     if (bottom instanceof Tile &&
                         ((Tile)bottom).n == currentTile.n) {
-                        return false; // Can combine vertically
+                        return false; // Can combine vertically.
                     }
                 }
             }
         }
 
-        // No empty spaces and no possible combinations
-        return true;
+        return true; // Game over.
     }
 }