diff --git a/core/src/avm2/globals.rs b/core/src/avm2/globals.rs
index 7dd13500e..4e05f2104 100644
--- a/core/src/avm2/globals.rs
+++ b/core/src/avm2/globals.rs
@@ -846,6 +846,7 @@ pub fn load_player_globals<'gc>(
         flash::ui::contextmenu::create_class(mc),
         script
     );
+    class(activation, flash::ui::mouse::create_class(mc), script)?;
 
     // package `flash.net`
     avm2_system_class!(
diff --git a/core/src/avm2/globals/flash/ui.rs b/core/src/avm2/globals/flash/ui.rs
index 7a8eb060e..708f1f9d4 100644
--- a/core/src/avm2/globals/flash/ui.rs
+++ b/core/src/avm2/globals/flash/ui.rs
@@ -1,3 +1,4 @@
 //! `flash.ui` namespace
 
 pub mod contextmenu;
+pub mod mouse;
diff --git a/core/src/avm2/globals/flash/ui/mouse.rs b/core/src/avm2/globals/flash/ui/mouse.rs
new file mode 100644
index 000000000..9186a6fff
--- /dev/null
+++ b/core/src/avm2/globals/flash/ui/mouse.rs
@@ -0,0 +1,63 @@
+//! `flash.ui.Mouse` builtin
+
+use crate::avm2::activation::Activation;
+use crate::avm2::class::{Class, ClassAttributes};
+use crate::avm2::method::{Method, NativeMethodImpl};
+use crate::avm2::names::{Namespace, QName};
+use crate::avm2::object::Object;
+use crate::avm2::value::Value;
+use crate::avm2::Error;
+use gc_arena::{GcCell, MutationContext};
+
+fn instance_init<'gc>(
+    _activation: &mut Activation<'_, 'gc, '_>,
+    _this: Option<Object<'gc>>,
+    _args: &[Value<'gc>],
+) -> Result<Value<'gc>, Error> {
+    Err("The Mouse class cannot be constructed.".into())
+}
+
+fn class_init<'gc>(
+    _activation: &mut Activation<'_, 'gc, '_>,
+    _this: Option<Object<'gc>>,
+    _args: &[Value<'gc>],
+) -> Result<Value<'gc>, Error> {
+    Ok(Value::Undefined)
+}
+
+fn hide<'gc>(
+    activation: &mut Activation<'_, 'gc, '_>,
+    _this: Option<Object<'gc>>,
+    _args: &[Value<'gc>],
+) -> Result<Value<'gc>, Error> {
+    activation.context.ui.set_mouse_visible(false);
+    Ok(Value::Undefined)
+}
+
+fn show<'gc>(
+    activation: &mut Activation<'_, 'gc, '_>,
+    _this: Option<Object<'gc>>,
+    _args: &[Value<'gc>],
+) -> Result<Value<'gc>, Error> {
+    activation.context.ui.set_mouse_visible(true);
+    Ok(Value::Undefined)
+}
+
+pub fn create_class<'gc>(mc: MutationContext<'gc, '_>) -> GcCell<'gc, Class<'gc>> {
+    let class = Class::new(
+        QName::new(Namespace::package("flash.ui"), "Mouse"),
+        Some(QName::new(Namespace::package(""), "Object").into()),
+        Method::from_builtin(instance_init, "<Mouse instance initializer>", mc),
+        Method::from_builtin(class_init, "<Mouse class initializer>", mc),
+        mc,
+    );
+
+    let mut write = class.write(mc);
+
+    write.set_attributes(ClassAttributes::SEALED | ClassAttributes::FINAL);
+
+    const PUBLIC_CLASS_METHODS: &[(&str, NativeMethodImpl)] = &[("show", show), ("hide", hide)];
+    write.define_public_builtin_class_methods(mc, PUBLIC_CLASS_METHODS);
+
+    class
+}