diff --git a/components/enemy.cpp b/components/enemy.cpp
index b3a404d7adedf62d5f251a326644f1b947cb76d8..1ef3b6fe1606082bd4ed1c1cd38a506718f8b102 100644
--- a/components/enemy.cpp
+++ b/components/enemy.cpp
@@ -20,6 +20,10 @@ static shared_ptr<Entity> create_bullet(Entity &from) {
     // Remove them when they are outside of the screen.
     e->add(std::make_shared<Remove_Outside>(20.0f));
 
+    // Add a shield, just to show that it is possible.
+    // e->add(std::make_shared<Shield>(Tag::enemy));
+    // e->add(std::make_shared<Shield>(Tag::player));
+
     return e;
 }