feat: rebase fix

lib/game/pinball_game.dart

@@ -29,17 +29,24 @@ class PinballGame extends Forge2DGame
     unawaited(_addPlunger());
 
     unawaited(_addFlippers());
+
+    unawaited(_addBonusWord());
   }
 
-  Future<void> _addFlippers() async {
-    const spaceBetweenFlippers = 2;
-    final leftFlipper = Flipper.left(
-      position: Vector2(
-        flippersPosition.x - (Flipper.width / 2) - (spaceBetweenFlippers / 2),
-        flippersPosition.y,
+  Future<void> _addBonusWord() async {
+    await add(
+      BonusWord(
+        position: screenToWorld(
+          Vector2(
+            camera.viewport.effectiveSize.x / 2,
+            camera.viewport.effectiveSize.y - 50,
+          ),
+        ),
       ),
     );
+  }
 
+  Future<void> _addFlippers() async {
     final flippersPosition = screenToWorld(
       Vector2(
         camera.viewport.effectiveSize.x / 2,
@@ -64,6 +71,7 @@ class PinballGame extends Forge2DGame
   void _addContactCallbacks() {
     addContactCallback(BallScorePointsCallback());
     addContactCallback(BottomWallBallContactCallback());
+    addContactCallback(BonusLetterBallContactCallback());
   }
 
   Future<void> _addGameBoundaries() async {