diff --git a/packages/pinball_components/test/src/components/android_bumper/android_bumper_test.dart b/packages/pinball_components/test/src/components/android_bumper/android_bumper_test.dart
index d5be2639..e2fed1d2 100644
--- a/packages/pinball_components/test/src/components/android_bumper/android_bumper_test.dart
+++ b/packages/pinball_components/test/src/components/android_bumper/android_bumper_test.dart
@@ -63,6 +63,30 @@ void main() {
     });
 
     group('adds', () {
+      flameTester.test('an AndroidBumperBallContactBehavior', (game) async {
+        final androidBumper = AndroidBumper.a();
+        await game.ensureAdd(androidBumper);
+        expect(
+          androidBumper.children
+              .whereType<AndroidBumperBallContactBehavior>()
+              .single,
+          isNotNull,
+        );
+      });
+
+      flameTester.test('an AndroidBumperBlinkingBehavior', (game) async {
+        final androidBumper = AndroidBumper.a();
+        await game.ensureAdd(androidBumper);
+        expect(
+          androidBumper.children
+              .whereType<AndroidBumperBlinkingBehavior>()
+              .single,
+          isNotNull,
+        );
+      });
+    });
+
+    group("'a' adds", () {
       flameTester.test('new children', (game) async {
         final component = Component();
         final androidBumper = AndroidBumper.a(
@@ -72,19 +96,48 @@ void main() {
         expect(androidBumper.children, contains(component));
       });
 
-      flameTester.test('an AndroidBumperBallContactBehavior', (game) async {
+      flameTester.test('a BumpingBehavior', (game) async {
         final androidBumper = AndroidBumper.a();
         await game.ensureAdd(androidBumper);
         expect(
-          androidBumper.children
-              .whereType<AndroidBumperBallContactBehavior>()
-              .single,
+          androidBumper.children.whereType<BumpingBehavior>().single,
           isNotNull,
         );
       });
+    });
+
+    group("'b' adds", () {
+      flameTester.test('new children', (game) async {
+        final component = Component();
+        final androidBumper = AndroidBumper.b(
+          children: [component],
+        );
+        await game.ensureAdd(androidBumper);
+        expect(androidBumper.children, contains(component));
+      });
 
       flameTester.test('a BumpingBehavior', (game) async {
-        final androidBumper = AndroidBumper.a();
+        final androidBumper = AndroidBumper.b();
+        await game.ensureAdd(androidBumper);
+        expect(
+          androidBumper.children.whereType<BumpingBehavior>().single,
+          isNotNull,
+        );
+      });
+    });
+
+    group("'cow' adds", () {
+      flameTester.test('new children', (game) async {
+        final component = Component();
+        final androidBumper = AndroidBumper.cow(
+          children: [component],
+        );
+        await game.ensureAdd(androidBumper);
+        expect(androidBumper.children, contains(component));
+      });
+
+      flameTester.test('a BumpingBehavior', (game) async {
+        final androidBumper = AndroidBumper.cow();
         await game.ensureAdd(androidBumper);
         expect(
           androidBumper.children.whereType<BumpingBehavior>().single,
diff --git a/packages/pinball_components/test/src/components/dash_nest_bumper/dash_nest_bumper_test.dart b/packages/pinball_components/test/src/components/dash_nest_bumper/dash_nest_bumper_test.dart
index deed97ac..df3ee36f 100644
--- a/packages/pinball_components/test/src/components/dash_nest_bumper/dash_nest_bumper_test.dart
+++ b/packages/pinball_components/test/src/components/dash_nest_bumper/dash_nest_bumper_test.dart
@@ -64,8 +64,39 @@ void main() {
       verify(bloc.close).called(1);
     });
 
-    group('adds', () {
-      flameTester.test('adds new children', (game) async {
+    flameTester.test('adds a DashNestBumperBallContactBehavior', (game) async {
+      final dashNestBumper = DashNestBumper.a();
+      await game.ensureAdd(dashNestBumper);
+      expect(
+        dashNestBumper.children
+            .whereType<DashNestBumperBallContactBehavior>()
+            .single,
+        isNotNull,
+      );
+    });
+
+    group("'main' adds", () {
+      flameTester.test('new children', (game) async {
+        final component = Component();
+        final dashNestBumper = DashNestBumper.main(
+          children: [component],
+        );
+        await game.ensureAdd(dashNestBumper);
+        expect(dashNestBumper.children, contains(component));
+      });
+
+      flameTester.test('a BumpingBehavior', (game) async {
+        final dashNestBumper = DashNestBumper.main();
+        await game.ensureAdd(dashNestBumper);
+        expect(
+          dashNestBumper.children.whereType<BumpingBehavior>().single,
+          isNotNull,
+        );
+      });
+    });
+
+    group("'a' adds", () {
+      flameTester.test('new children', (game) async {
         final component = Component();
         final dashNestBumper = DashNestBumper.a(
           children: [component],
@@ -74,19 +105,28 @@ void main() {
         expect(dashNestBumper.children, contains(component));
       });
 
-      flameTester.test('a DashNestBumperBallContactBehavior', (game) async {
+      flameTester.test('a BumpingBehavior', (game) async {
         final dashNestBumper = DashNestBumper.a();
         await game.ensureAdd(dashNestBumper);
         expect(
-          dashNestBumper.children
-              .whereType<DashNestBumperBallContactBehavior>()
-              .single,
+          dashNestBumper.children.whereType<BumpingBehavior>().single,
           isNotNull,
         );
       });
+    });
+
+    group("'b' adds", () {
+      flameTester.test('new children', (game) async {
+        final component = Component();
+        final dashNestBumper = DashNestBumper.b(
+          children: [component],
+        );
+        await game.ensureAdd(dashNestBumper);
+        expect(dashNestBumper.children, contains(component));
+      });
 
       flameTester.test('a BumpingBehavior', (game) async {
-        final dashNestBumper = DashNestBumper.a();
+        final dashNestBumper = DashNestBumper.b();
         await game.ensureAdd(dashNestBumper);
         expect(
           dashNestBumper.children.whereType<BumpingBehavior>().single,
diff --git a/packages/pinball_components/test/src/components/sparky_bumper/sparky_bumper_test.dart b/packages/pinball_components/test/src/components/sparky_bumper/sparky_bumper_test.dart
index 922e37b7..709b3dc5 100644
--- a/packages/pinball_components/test/src/components/sparky_bumper/sparky_bumper_test.dart
+++ b/packages/pinball_components/test/src/components/sparky_bumper/sparky_bumper_test.dart
@@ -63,6 +63,30 @@ void main() {
     });
 
     group('adds', () {
+      flameTester.test('a SparkyBumperBallContactBehavior', (game) async {
+        final sparkyBumper = SparkyBumper.a();
+        await game.ensureAdd(sparkyBumper);
+        expect(
+          sparkyBumper.children
+              .whereType<SparkyBumperBallContactBehavior>()
+              .single,
+          isNotNull,
+        );
+      });
+
+      flameTester.test('a SparkyBumperBlinkingBehavior', (game) async {
+        final sparkyBumper = SparkyBumper.a();
+        await game.ensureAdd(sparkyBumper);
+        expect(
+          sparkyBumper.children
+              .whereType<SparkyBumperBlinkingBehavior>()
+              .single,
+          isNotNull,
+        );
+      });
+    });
+
+    group("'a' adds", () {
       flameTester.test('new children', (game) async {
         final component = Component();
         final sparkyBumper = SparkyBumper.a(
@@ -72,25 +96,54 @@ void main() {
         expect(sparkyBumper.children, contains(component));
       });
 
-      flameTester.test('a SparkyBumperBallContactBehavior', (game) async {
+      flameTester.test('a BumpingBehavior', (game) async {
         final sparkyBumper = SparkyBumper.a();
         await game.ensureAdd(sparkyBumper);
         expect(
-          sparkyBumper.children
-              .whereType<SparkyBumperBallContactBehavior>()
-              .single,
+          sparkyBumper.children.whereType<BumpingBehavior>().single,
           isNotNull,
         );
       });
+    });
+
+    group("'b' adds", () {
+      flameTester.test('new children', (game) async {
+        final component = Component();
+        final sparkyBumper = SparkyBumper.b(
+          children: [component],
+        );
+        await game.ensureAdd(sparkyBumper);
+        expect(sparkyBumper.children, contains(component));
+      });
 
       flameTester.test('a BumpingBehavior', (game) async {
-        final sparkyBumper = SparkyBumper.a();
+        final sparkyBumper = SparkyBumper.b();
         await game.ensureAdd(sparkyBumper);
         expect(
           sparkyBumper.children.whereType<BumpingBehavior>().single,
           isNotNull,
         );
       });
+
+      group("'c' adds", () {
+        flameTester.test('new children', (game) async {
+          final component = Component();
+          final sparkyBumper = SparkyBumper.c(
+            children: [component],
+          );
+          await game.ensureAdd(sparkyBumper);
+          expect(sparkyBumper.children, contains(component));
+        });
+
+        flameTester.test('a BumpingBehavior', (game) async {
+          final sparkyBumper = SparkyBumper.c();
+          await game.ensureAdd(sparkyBumper);
+          expect(
+            sparkyBumper.children.whereType<BumpingBehavior>().single,
+            isNotNull,
+          );
+        });
+      });
     });
   });
 }