diff --git a/lib/game/components/crossing_ramp.dart b/lib/game/components/crossing_ramp.dart
index 184a3d9d..847e12f0 100644
--- a/lib/game/components/crossing_ramp.dart
+++ b/lib/game/components/crossing_ramp.dart
@@ -14,7 +14,7 @@ enum RampOrientation {
   down,
 }
 
-/// Indicates the type of the ramp.
+/// Indicates a type of the ramp.
 ///
 /// Used to set the maskBits of the ramp to determine their possible collisions.
 enum RampType {
@@ -46,15 +46,17 @@ extension RampTypeX on RampType {
   }
 }
 
-/// {@template ramp_area}
+/// {@template ramp_opening}
 /// [BodyComponent] located at the entrance and exit of a ramp.
 ///
-/// Detects when a [Ball] goes through it,
-/// Collisions with [RampArea] are listened by [RampAreaCallback].
+/// [RampOpeningBallContactCallback] detects when a [Ball] passes
+/// through this opening.
+/// Collisions with [RampOpening] are listened
+/// by [RampOpeningBallContactCallback].
 /// {@endtemplate}
-abstract class RampArea extends BodyComponent {
-  /// {@macro ramp_area}
-  RampArea({
+abstract class RampOpening extends BodyComponent {
+  /// {@macro ramp_opening}
+  RampOpening({
     required Vector2 position,
     required int categoryBits,
   })  : _position = position,
@@ -66,37 +68,38 @@ abstract class RampArea extends BodyComponent {
   final Vector2 _position;
   final int _categoryBits;
 
-  /// Mask of category bits for collision with [RampArea]
+  /// Mask of category bits for collision with [RampOpening]
   int get categoryBits => _categoryBits;
 
-  /// The [Shape] of the [RampArea]
+  /// The [Shape] of the [RampOpening]
   Shape get shape;
 
-  /// Orientation of the [RampArea] entrance/exit
+  /// Orientation of the [RampOpening] entrance/exit
   RampOrientation get orientation;
 
   @override
   Body createBody() {
-    final fixtureDef = FixtureDef(shape)
-      ..isSensor = true
-      ..filter.categoryBits = _categoryBits;
+    final fixtureDef = FixtureDef(shape)..isSensor = true;
 
     final bodyDef = BodyDef()
       ..userData = this
       ..position = _position
       ..type = BodyType.static;
 
-    return world.createBody(bodyDef)..createFixture(fixtureDef);
+    final body = world.createBody(bodyDef);
+    body.createFixture(fixtureDef).filterData.categoryBits = _categoryBits;
+
+    return body;
   }
 }
 
-/// {@template ramp_area_callback}
-/// Listens when a [Ball] goes through a [RampArea] and gets into a [Pathway]
-/// ramp, in order to avoid collisions with other crossing ramps.
-/// Modifies [Ball]'s maskBits while is inside the ramp. When exits sets [Ball]
-/// maskBits to collide with all elements.
+/// {@template ramp_opening_ball_contact_callback}
+/// Detects when a [Ball] enters or exits a [Pathway] ramp through a
+/// [RampOpening].
+/// Modifies [Ball]'s maskBits while is inside the ramp. When [Ball] exits,
+/// sets maskBits to collide with all elements.
 /// {@endtemplate}
-abstract class RampAreaCallback<Area extends RampArea>
+abstract class RampOpeningBallContactCallback<Area extends RampOpening>
     extends ContactCallback<Ball, Area> {
   /// Collection of balls inside ramp pathway.
   Set get ballsInside;
diff --git a/lib/game/components/jetpack_ramp.dart b/lib/game/components/jetpack_ramp.dart
index caaef312..2ffd6c32 100644
--- a/lib/game/components/jetpack_ramp.dart
+++ b/lib/game/components/jetpack_ramp.dart
@@ -7,13 +7,13 @@ import 'package:pinball/game/game.dart';
 /// Represents the upper left blue ramp for the game.
 ///
 /// Composed of a [Pathway.arc] defining the ramp, and two
-/// [JetpackRampArea]s at the entrance and exit of the ramp.
+/// [JetpackRampOpening]s at the entrance and exit of the ramp.
 /// {@endtemplate}
-class JetpackRamp extends PositionComponent with HasGameRef<PinballGame> {
+class JetpackRamp extends Component with HasGameRef<PinballGame> {
   /// {@macro jetpack_ramp}
   JetpackRamp({
-    required Vector2 position,
-  }) : _position = position;
+    required this.position,
+  });
 
   final double _radius = 200;
   final double _width = 80;
@@ -21,14 +21,16 @@ class JetpackRamp extends PositionComponent with HasGameRef<PinballGame> {
   final double _rotation = radians(-10);
   final double _entranceRotation = radians(15);
   final double _exitRotation = radians(-5);
-  final Vector2 _position;
+
+  /// The position of this [JetpackRamp]
+  final Vector2 position;
 
   @override
   Future<void> onLoad() async {
     await add(
       Pathway.arc(
         color: const Color.fromARGB(255, 8, 218, 241),
-        position: _position,
+        position: position,
         width: _width,
         radius: _radius,
         angle: _angle,
@@ -38,33 +40,33 @@ class JetpackRamp extends PositionComponent with HasGameRef<PinballGame> {
     );
 
     await add(
-      JetpackRampArea(
-        position: _position + Vector2(-10.5, 0),
+      JetpackRampOpening(
+        position: position + Vector2(-10.5, 0),
         rotation: _entranceRotation,
         orientation: RampOrientation.down,
       ),
     );
     await add(
-      JetpackRampArea(
-        position: _position + Vector2(20.5, 3),
+      JetpackRampOpening(
+        position: position + Vector2(20.5, 3),
         rotation: _exitRotation,
         orientation: RampOrientation.down,
       ),
     );
 
-    gameRef.addContactCallback(JetpackRampAreaCallback());
+    gameRef.addContactCallback(JetpackRampOpeningBallContactCallback());
   }
 }
 
-/// {@template jetpack_ramp_area}
-/// Implementation of [RampArea] for sensors in [JetpackRamp].
+/// {@template jetpack_ramp_opening}
+/// Implementation of [RampOpening] for sensors in [JetpackRamp].
 ///
-/// [RampArea] with [RampType.jetpack] to filter [Ball]s collisions
+/// [RampOpening] with [RampType.jetpack] to filter [Ball]s collisions
 /// inside [JetpackRamp].
 /// {@endtemplate}
-class JetpackRampArea extends RampArea {
-  /// {@macro jetpack_ramp_area}
-  JetpackRampArea({
+class JetpackRampOpening extends RampOpening {
+  /// {@macro jetpack_ramp_opening}
+  JetpackRampOpening({
     required Vector2 position,
     double rotation = 0,
     required RampOrientation orientation,
@@ -76,14 +78,14 @@ class JetpackRampArea extends RampArea {
         );
 
   /// Orientation of entrance/exit of [JetpackRamp] where
-  /// this [JetpackRampArea] is placed.
+  /// this [JetpackRampOpening] is placed.
   final RampOrientation _orientation;
 
-  /// Rotation of the [RampArea] to place it right at the
+  /// Rotation of the [RampOpening] to place it right at the
   /// entrance/exit of [JetpackRamp].
   final double _rotation;
 
-  /// Size of the [RampArea] placed at the entrance/exit of [JetpackRamp].
+  /// Size of the [RampOpening] placed at the entrance/exit of [JetpackRamp].
   final int _size = 7;
 
   @override
@@ -99,13 +101,14 @@ class JetpackRampArea extends RampArea {
     ]);
 }
 
-/// {@template jetpack_ramp_area_callback}
-/// Implementation of [RampAreaCallback] to listen when a [Ball]
-/// gets into a [JetpackRampArea].
+/// {@template jetpack_ramp_opening_ball_contact_callback}
+/// Implementation of [RampOpeningBallContactCallback] to listen when a [Ball]
+/// gets into a [JetpackRampOpening].
 /// {@endtemplate}
-class JetpackRampAreaCallback extends RampAreaCallback<JetpackRampArea> {
-  /// {@macro jetpack_ramp_area_callback}
-  JetpackRampAreaCallback() : super();
+class JetpackRampOpeningBallContactCallback
+    extends RampOpeningBallContactCallback<JetpackRampOpening> {
+  /// {@macro jetpack_ramp_opening_ball_contact_callback}
+  JetpackRampOpeningBallContactCallback() : super();
 
   /// Collection of balls inside [JetpackRamp].
   final _ballsInsideJetpack = <Ball>{};
diff --git a/lib/game/components/sparky_ramp.dart b/lib/game/components/sparky_ramp.dart
index 19690371..2a976787 100644
--- a/lib/game/components/sparky_ramp.dart
+++ b/lib/game/components/sparky_ramp.dart
@@ -7,27 +7,28 @@ import 'package:pinball/game/game.dart';
 /// Represent the upper right yellow ramp for the game.
 ///
 /// Group of [Component]s composed by a [Pathway.arc] as the ramp, and two
-/// [SparkyRampArea] at the entrance and exit of the ramp, to detect when
+/// [SparkyRampOpening] at the entrance and exit of the ramp, to detect when
 /// a ball gets into/out of the ramp.
 /// {@endtemplate}
-class SparkyRamp extends PositionComponent with HasGameRef<PinballGame> {
+class SparkyRamp extends Component with HasGameRef<PinballGame> {
   /// {@macro sparky_ramp}
   SparkyRamp({
-    required Vector2 position,
-  })  : _position = position,
-        super();
+    required this.position,
+  });
 
   final double _radius = 300;
   final double _width = 80;
   final double _angle = radians(200);
-  final Vector2 _position;
+
+  /// The position of this [SparkyRamp]
+  final Vector2 position;
 
   @override
   Future<void> onLoad() async {
     await add(
       Pathway.arc(
         color: const Color.fromARGB(255, 251, 255, 0),
-        position: _position,
+        position: position,
         radius: _radius,
         angle: _angle,
         width: _width,
@@ -35,32 +36,32 @@ class SparkyRamp extends PositionComponent with HasGameRef<PinballGame> {
       ),
     );
     await add(
-      SparkyRampArea(
-        position: _position + Vector2(-18, -2),
+      SparkyRampOpening(
+        position: position + Vector2(-18, -2),
         orientation: RampOrientation.down,
         rotation: radians(13),
       ),
     );
     await add(
-      SparkyRampArea(
-        position: _position + Vector2(33, 6),
+      SparkyRampOpening(
+        position: position + Vector2(33, 6),
         orientation: RampOrientation.down,
       ),
     );
 
-    gameRef.addContactCallback(SparkyRampAreaCallback());
+    gameRef.addContactCallback(SparkyRampOpeningBallContactCallback());
   }
 }
 
-/// {@template sparky_ramp_area}
-/// Implementation of [RampArea] for sensors in [SparkyRamp].
+/// {@template sparky_ramp_opening}
+/// Implementation of [RampOpening] for sensors in [SparkyRamp].
 ///
-/// [RampArea] with [RampType.sparky] to filter [Ball]s collisions
+/// [RampOpening] with [RampType.sparky] to filter [Ball]s collisions
 /// inside [SparkyRamp].
 /// {@endtemplate}
-class SparkyRampArea extends RampArea {
-  /// {@macro sparky_ramp_area}
-  SparkyRampArea({
+class SparkyRampOpening extends RampOpening {
+  /// {@macro sparky_ramp_opening}
+  SparkyRampOpening({
     required Vector2 position,
     double rotation = 0,
     required RampOrientation orientation,
@@ -72,14 +73,14 @@ class SparkyRampArea extends RampArea {
         );
 
   /// Orientation of entrance/exit of [SparkyRamp] where
-  /// this [SparkyRampArea] is placed.
+  /// this [SparkyRampOpening] is placed.
   final RampOrientation _orientation;
 
-  /// Rotation of the [RampArea] to place it right at the
+  /// Rotation of the [RampOpening] to place it right at the
   /// entrance/exit of [SparkyRamp].
   final double _rotation;
 
-  /// Size of the [RampArea] placed at the entrance/exit of [SparkyRamp].
+  /// Size of the [RampOpening] placed at the entrance/exit of [SparkyRamp].
   final int _size = 7;
 
   @override
@@ -95,13 +96,14 @@ class SparkyRampArea extends RampArea {
     ]);
 }
 
-/// {@template sparky_ramp_area_callback}
-/// Implementation of [RampAreaCallback] to listen when a [Ball]
-/// gets into a [SparkyRampArea].
+/// {@template sparky_ramp_opening_ball_contact_callback}
+/// Implementation of [RampOpeningBallContactCallback] to listen when a [Ball]
+/// gets into a [SparkyRampOpening].
 /// {@endtemplate}
-class SparkyRampAreaCallback extends RampAreaCallback<SparkyRampArea> {
-  /// {@macro sparky_ramp_area_callback}
-  SparkyRampAreaCallback() : super();
+class SparkyRampOpeningBallContactCallback
+    extends RampOpeningBallContactCallback<SparkyRampOpening> {
+  /// {@macro sparky_ramp_opening_ball_contact_callback}
+  SparkyRampOpeningBallContactCallback() : super();
 
   /// Collection of balls inside [SparkyRamp].
   final _ballsInsideSparky = <Ball>{};
diff --git a/test/game/components/crossing_ramp_test.dart b/test/game/components/crossing_ramp_test.dart
index af2b84e6..e98daac1 100644
--- a/test/game/components/crossing_ramp_test.dart
+++ b/test/game/components/crossing_ramp_test.dart
@@ -7,7 +7,7 @@ import 'package:pinball/game/game.dart';
 
 import '../../helpers/helpers.dart';
 
-class TestRampArea extends RampArea {
+class TestRampArea extends RampOpening {
   TestRampArea({
     required Vector2 position,
     required RampOrientation orientation,
@@ -30,7 +30,8 @@ class TestRampArea extends RampArea {
     ]);
 }
 
-class TestRampAreaCallback extends RampAreaCallback<TestRampArea> {
+class TestRampAreaCallback
+    extends RampOpeningBallContactCallback<TestRampArea> {
   TestRampAreaCallback() : super();
 
   final _ballsInside = <Ball>{};
diff --git a/test/game/components/jetpack_ramp_test.dart b/test/game/components/jetpack_ramp_test.dart
index 8b6e3321..434ab9bf 100644
--- a/test/game/components/jetpack_ramp_test.dart
+++ b/test/game/components/jetpack_ramp_test.dart
@@ -9,7 +9,7 @@ import 'package:pinball/game/game.dart';
 
 import '../../helpers/helpers.dart';
 
-class MockJetpackRampArea extends Mock implements JetpackRampArea {}
+class MockJetpackRampArea extends Mock implements JetpackRampOpening {}
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
@@ -33,7 +33,7 @@ void main() {
       flameTester.test(
         'positions correctly',
         (game) async {
-          final position = Vector2.zero();
+          final position = Vector2.all(10);
           final ramp = JetpackRamp(
             position: position,
           );
@@ -72,7 +72,8 @@ void main() {
           await game.ready();
           await game.ensureAdd(ramp);
 
-          final rampAreas = ramp.children.whereType<JetpackRampArea>().toList();
+          final rampAreas =
+              ramp.children.whereType<JetpackRampOpening>().toList();
           expect(rampAreas.length, 2);
         },
       );
@@ -84,7 +85,7 @@ void main() {
       'orientation is down',
       (game) async {
         final position = Vector2.all(10);
-        final ramp = JetpackRampArea(
+        final ramp = JetpackRampOpening(
           position: position,
           orientation: RampOrientation.down,
         );
@@ -98,7 +99,8 @@ void main() {
 
   group('JetpackRampAreaCallback', () {
     test('has no ball inside on creation', () {
-      expect(JetpackRampAreaCallback().ballsInside, equals(<Ball>{}));
+      expect(JetpackRampOpeningBallContactCallback().ballsInside,
+          equals(<Ball>{}));
     });
   });
 }
diff --git a/test/game/components/sparky_ramp_test.dart b/test/game/components/sparky_ramp_test.dart
index fd24bd48..84cb3a7f 100644
--- a/test/game/components/sparky_ramp_test.dart
+++ b/test/game/components/sparky_ramp_test.dart
@@ -9,7 +9,7 @@ import 'package:pinball/game/game.dart';
 
 import '../../helpers/helpers.dart';
 
-class MockSparkyRampArea extends Mock implements SparkyRampArea {}
+class MockSparkyRampArea extends Mock implements SparkyRampOpening {}
 
 void main() {
   TestWidgetsFlutterBinding.ensureInitialized();
@@ -33,7 +33,7 @@ void main() {
       flameTester.test(
         'positions correctly',
         (game) async {
-          final position = Vector2.zero();
+          final position = Vector2.all(10);
           final ramp = SparkyRamp(
             position: position,
           );
@@ -72,7 +72,8 @@ void main() {
           await game.ready();
           await game.ensureAdd(ramp);
 
-          final rampAreas = ramp.children.whereType<SparkyRampArea>().toList();
+          final rampAreas =
+              ramp.children.whereType<SparkyRampOpening>().toList();
           expect(rampAreas.length, 2);
         },
       );
@@ -84,7 +85,7 @@ void main() {
       'orientation is down',
       (game) async {
         final position = Vector2.all(10);
-        final ramp = SparkyRampArea(
+        final ramp = SparkyRampOpening(
           position: position,
           orientation: RampOrientation.down,
         );
@@ -98,7 +99,8 @@ void main() {
 
   group('SparkyRampAreaCallback', () {
     test('has no ball inside on creation', () {
-      expect(SparkyRampAreaCallback().ballsInside, equals(<Ball>{}));
+      expect(
+          SparkyRampOpeningBallContactCallback().ballsInside, equals(<Ball>{}));
     });
   });
 }
diff --git a/test/helpers/mocks.dart b/test/helpers/mocks.dart
index 2c6c4264..cace878a 100644
--- a/test/helpers/mocks.dart
+++ b/test/helpers/mocks.dart
@@ -18,9 +18,10 @@ class MockBall extends Mock implements Ball {}
 
 class MockContact extends Mock implements Contact {}
 
-class MockArea extends Mock implements RampArea {}
+class MockRampOpening extends Mock implements RampOpening {}
 
-class MockRampAreaCallback extends Mock implements RampAreaCallback {}
+class MockRampOpeningBallContactCallback extends Mock
+    implements RampOpeningBallContactCallback {}
 
 class MockGameBloc extends Mock implements GameBloc {}