diff --git a/Sources/CleanMyScreen/ContentView.swift b/Sources/CleanMyScreen/ContentView.swift
index 40b2558..36cf6b9 100644
--- a/Sources/CleanMyScreen/ContentView.swift
+++ b/Sources/CleanMyScreen/ContentView.swift
@@ -56,7 +56,15 @@ struct ContentView: View {
         }
         .animation(.easeInOut(duration: 0.2), value: coordinator.selectedMode)
         .animation(.easeInOut(duration: 0.2), value: coordinator.warningMessage)
-        .onChange(of: coordinator.sessionState) { _, state in
+        .onChange(of: coordinator.sessionState) { previousState, state in
+            if case .countingDown = previousState,
+               state == .idle,
+               coordinator.selectedMode.hidesApplicationWhenCountdownBegins {
+                NSApp.unhide(nil)
+                NSApp.activate(ignoringOtherApps: true)
+                return
+            }
+
             let shouldHide = switch state {
             case .idle:
                 false
diff --git a/Sources/CleanMyScreenKit/LockSessionCoordinator.swift b/Sources/CleanMyScreenKit/LockSessionCoordinator.swift
index 126aee8..c5c744e 100644
--- a/Sources/CleanMyScreenKit/LockSessionCoordinator.swift
+++ b/Sources/CleanMyScreenKit/LockSessionCoordinator.swift
@@ -98,6 +98,9 @@ public final class LockSessionCoordinator: ObservableObject {
             guard let self else { return }
             for seconds in stride(from: countdownSeconds, through: 1, by: -1) {
                 guard !Task.isCancelled else { return }
+                if self.selectedMode == .petKid {
+                    self.overlays.showPreparationHUD(secondsRemaining: seconds)
+                }
                 self.sessionState = .countingDown(seconds)
                 try? await Task.sleep(for: .seconds(1))
             }
@@ -110,6 +113,7 @@ public final class LockSessionCoordinator: ObservableObject {
         guard case .countingDown = sessionState else { return }
         countdownTask?.cancel()
         countdownTask = nil
+        overlays.hideAll()
         sessionState = .idle
     }
 
diff --git a/Sources/CleanMyScreenKit/Services/DisplayOverlayController.swift b/Sources/CleanMyScreenKit/Services/DisplayOverlayController.swift
index 949efc1..360da8b 100644
--- a/Sources/CleanMyScreenKit/Services/DisplayOverlayController.swift
+++ b/Sources/CleanMyScreenKit/Services/DisplayOverlayController.swift
@@ -13,6 +13,8 @@ public final class DisplayOverlayController: NSObject, OverlayControlling {
     private var cleaningWindows: [NSWindow] = []
     private var hintViews: [NSView] = []
     private var transientHUDWindow: NSWindow?
+    private var transientHUDTitleLabel: NSTextField?
+    private var transientHUDDetailLabel: NSTextField?
     private var hintFadeTimer: Timer?
     private var hudDismissTimer: Timer?
     private var hudCloseTimer: Timer?
@@ -49,6 +51,33 @@ public final class DisplayOverlayController: NSObject, OverlayControlling {
     }
 
     public func showTransientHUD(title: String, detail: String) {
+        presentHUD(title: title, detail: detail, dismissAfter: 3.5)
+    }
+
+    public func showPreparationHUD(secondsRemaining: Int) {
+        let unit = secondsRemaining == 1 ? "second" : "seconds"
+        presentHUD(
+            title: "Open or full-screen your video",
+            detail: "Input locks in \(secondsRemaining) \(unit)",
+            dismissAfter: nil
+        )
+    }
+
+    private func presentHUD(title: String, detail: String, dismissAfter: TimeInterval?) {
+        hudDismissTimer?.invalidate()
+        hudDismissTimer = nil
+        hudCloseTimer?.invalidate()
+        hudCloseTimer = nil
+
+        if transientHUDWindow != nil,
+           let titleLabel = transientHUDTitleLabel,
+           let detailLabel = transientHUDDetailLabel {
+            titleLabel.stringValue = title
+            detailLabel.stringValue = detail
+            scheduleHUDDismissal(after: dismissAfter)
+            return
+        }
+
         hideAll()
 
         guard let screen = NSScreen.main ?? NSScreen.screens.first else { return }
@@ -78,8 +107,8 @@ public final class DisplayOverlayController: NSObject, OverlayControlling {
             .ignoresCycle,
         ]
 
-        let contentView = makeHUDContentView(title: title, detail: detail)
-        panel.contentView = contentView
+        let content = makeHUDContentView(title: title, detail: detail)
+        panel.contentView = content.view
         panel.alphaValue = 0
         panel.orderFrontRegardless()
 
@@ -89,13 +118,9 @@ public final class DisplayOverlayController: NSObject, OverlayControlling {
         }
 
         transientHUDWindow = panel
-        hudDismissTimer = Timer.scheduledTimer(
-            timeInterval: 3.5,
-            target: self,
-            selector: #selector(beginHUDDismissal(_:)),
-            userInfo: nil,
-            repeats: false
-        )
+        transientHUDTitleLabel = content.titleLabel
+        transientHUDDetailLabel = content.detailLabel
+        scheduleHUDDismissal(after: dismissAfter)
     }
 
     public func hideAll() {
@@ -223,7 +248,10 @@ public final class DisplayOverlayController: NSObject, OverlayControlling {
         return container
     }
 
-    private func makeHUDContentView(title: String, detail: String) -> NSView {
+    private func makeHUDContentView(
+        title: String,
+        detail: String
+    ) -> (view: NSView, titleLabel: NSTextField, detailLabel: NSTextField) {
         let container = NSVisualEffectView()
         container.material = .hudWindow
         container.blendingMode = .behindWindow
@@ -256,7 +284,18 @@ public final class DisplayOverlayController: NSObject, OverlayControlling {
             stack.trailingAnchor.constraint(equalTo: container.trailingAnchor, constant: -24),
             stack.centerYAnchor.constraint(equalTo: container.centerYAnchor),
         ])
-        return container
+        return (container, titleLabel, detailLabel)
+    }
+
+    private func scheduleHUDDismissal(after delay: TimeInterval?) {
+        guard let delay else { return }
+        hudDismissTimer = Timer.scheduledTimer(
+            timeInterval: delay,
+            target: self,
+            selector: #selector(beginHUDDismissal(_:)),
+            userInfo: nil,
+            repeats: false
+        )
     }
 
     @objc
@@ -296,6 +335,8 @@ public final class DisplayOverlayController: NSObject, OverlayControlling {
         transientHUDWindow?.orderOut(nil)
         transientHUDWindow?.close()
         transientHUDWindow = nil
+        transientHUDTitleLabel = nil
+        transientHUDDetailLabel = nil
     }
 
     private func closeCleaningWindows() {
@@ -315,5 +356,7 @@ public final class DisplayOverlayController: NSObject, OverlayControlling {
         transientHUDWindow?.orderOut(nil)
         transientHUDWindow?.close()
         transientHUDWindow = nil
+        transientHUDTitleLabel = nil
+        transientHUDDetailLabel = nil
     }
 }
diff --git a/Sources/CleanMyScreenKit/Services/ServiceProtocols.swift b/Sources/CleanMyScreenKit/Services/ServiceProtocols.swift
index 9d83974..f2f92ba 100644
--- a/Sources/CleanMyScreenKit/Services/ServiceProtocols.swift
+++ b/Sources/CleanMyScreenKit/Services/ServiceProtocols.swift
@@ -46,6 +46,7 @@ public protocol HIDDeviceBlocking: AnyObject {
 public protocol OverlayControlling: AnyObject {
     var isShowingCleaningOverlay: Bool { get }
     func showCleaningOverlay(onAllDisplays: Bool, unlockHint: String)
+    func showPreparationHUD(secondsRemaining: Int)
     func showTransientHUD(title: String, detail: String)
     func hideAll()
 }
diff --git a/SupportingFiles/Info.plist b/SupportingFiles/Info.plist
index 384e701..cb012cc 100644
--- a/SupportingFiles/Info.plist
+++ b/SupportingFiles/Info.plist
@@ -19,9 +19,9 @@
     <key>CFBundlePackageType</key>
     <string>APPL</string>
     <key>CFBundleShortVersionString</key>
-    <string>0.1.3</string>
+    <string>0.1.4</string>
     <key>CFBundleVersion</key>
-    <string>4</string>
+    <string>5</string>
     <key>LSMinimumSystemVersion</key>
     <string>14.0</string>
     <key>NSHighResolutionCapable</key>
diff --git a/Tests/CleanMyScreenKitTests/CoordinatorFlowTests.swift b/Tests/CleanMyScreenKitTests/CoordinatorFlowTests.swift
index 1e5d5cf..2e0cb18 100644
--- a/Tests/CleanMyScreenKitTests/CoordinatorFlowTests.swift
+++ b/Tests/CleanMyScreenKitTests/CoordinatorFlowTests.swift
@@ -43,19 +43,25 @@ func permissionAllowsCountdown() async {
 @Test("Pet and Kid mode provides a five-second preparation countdown")
 func petKidPreparationCountdown() async {
     let input = TestInputBlocker(hasMonitoringAccess: true)
+    let overlays = TestOverlayController()
     let coordinator = LockSessionCoordinator(
         inputBlocker: input,
         hidBlocker: TestHIDBlocker(),
-        overlays: TestOverlayController(),
+        overlays: overlays,
         brightness: TestBrightnessController()
     )
     coordinator.selectedMode = .petKid
+    overlays.onShowPreparation = { _ in
+        #expect(coordinator.sessionState == .idle)
+    }
 
     coordinator.startSelectedMode()
     await Task.yield()
 
     #expect(coordinator.sessionState == .countingDown(5))
+    #expect(overlays.preparationHUDSeconds == [5])
     coordinator.cancelCountdown()
+    #expect(overlays.hideAllCount == 1)
 }
 
 private final class TestInputBlocker: InputBlocking, @unchecked Sendable {
@@ -96,14 +102,23 @@ private final class TestHIDBlocker: HIDDeviceBlocking, @unchecked Sendable {
 @MainActor
 private final class TestOverlayController: OverlayControlling {
     var isShowingCleaningOverlay = false
+    var preparationHUDSeconds: [Int] = []
+    var hideAllCount = 0
+    var onShowPreparation: ((Int) -> Void)?
 
     func showCleaningOverlay(onAllDisplays: Bool, unlockHint: String) {
         isShowingCleaningOverlay = true
     }
 
+    func showPreparationHUD(secondsRemaining: Int) {
+        preparationHUDSeconds.append(secondsRemaining)
+        onShowPreparation?(secondsRemaining)
+    }
+
     func showTransientHUD(title: String, detail: String) {}
 
     func hideAll() {
+        hideAllCount += 1
         isShowingCleaningOverlay = false
     }
 }