diff --git a/simple64-gui/main.cpp b/simple64-gui/main.cpp
index ba6a1ef..79f632c 100644
--- a/simple64-gui/main.cpp
+++ b/simple64-gui/main.cpp
@@ -16,8 +16,10 @@ int main(int argc, char *argv[])
     parser.addHelpOption();
     QCommandLineOption verboseOption({"v", "verbose"}, "Verbose mode. Prints out more information to log.");
     QCommandLineOption noGUIOption("nogui", "Disable GUI elements.");
+    QCommandLineOption testOption("test", "Run debug tests.", "number_of_frames");
     parser.addOption(verboseOption);
     parser.addOption(noGUIOption);
+    parser.addOption(testOption);
     parser.addPositionalArgument("ROM", QCoreApplication::translate("main", "ROM to open."));
     parser.process(a);
     const QStringList args = parser.positionalArguments();
@@ -29,6 +31,8 @@ int main(int argc, char *argv[])
         w->setVerbose();
     if (parser.isSet(noGUIOption))
         w->setNoGUI();
+    if (parser.isSet(testOption))
+        w->setTest(parser.value(testOption).toInt());
     if (args.size() > 0)
         w->openROM(args.at(0), "", 0, 0);
     else
diff --git a/simple64-gui/mainwindow.cpp b/simple64-gui/mainwindow.cpp
index b48e847..e70d065 100644
--- a/simple64-gui/mainwindow.cpp
+++ b/simple64-gui/mainwindow.cpp
@@ -239,6 +239,7 @@ MainWindow::MainWindow(QWidget *parent) :
 {
     verbose = 0;
     nogui = 0;
+    run_test = 0;
     ui->setupUi(this);
     this->setWindowTitle("simple64    build: " + QStringLiteral(GUI_VERSION).mid(0,7));
 
@@ -485,6 +486,16 @@ int MainWindow::getNoGUI()
     return nogui;
 }
 
+void MainWindow::setTest(int value)
+{
+    run_test = value;
+}
+
+int MainWindow::getTest()
+{
+    return run_test;
+}
+
 int MainWindow::getVerbose()
 {
     return verbose;
@@ -1104,8 +1115,34 @@ void MainWindow::addFrameCount()
     ++frame_count;
 }
 
+void MainWindow::simulateInput()
+{
+    int keyValue = 225; // Shift/A
+    if (run_test % 2)
+        (*CoreDoCommand)(M64CMD_SEND_SDL_KEYDOWN, keyValue, NULL);
+    else
+    {
+        (*CoreDoCommand)(M64CMD_SEND_SDL_KEYUP, keyValue, NULL);
+        if (keyValue = 225)
+            keyValue = 40; // Enter/Start
+        else
+            keyValue = 225;
+    }
+    printf("%u\n", frame_count);
+    if (run_test == 1)
+    {
+        if (frame_count == 0)
+            abort();
+        else
+            (*CoreDoCommand)(M64CMD_STOP, 0, NULL);
+    }
+    --run_test;
+}
+
 void MainWindow::updateFrameCount()
 {
+    if (run_test)
+        simulateInput();
     QString FPS = QString("%1 FPS").arg(frame_count);
     FPSLabel->setText(FPS);
     frame_count = 0;
diff --git a/simple64-gui/mainwindow.h b/simple64-gui/mainwindow.h
index da76e3e..acda2fc 100644
--- a/simple64-gui/mainwindow.h
+++ b/simple64-gui/mainwindow.h
@@ -47,6 +47,8 @@ public:
     int getVerbose();
     void setNoGUI();
     int getNoGUI();
+    void setTest(int value);
+    int getTest();
     void updatePlugins();
     void resetCore();
     m64p_dynlib_handle getCoreLib();
@@ -138,10 +140,12 @@ private:
     void loadPlugins();
     void closeCoreLib();
     void closePlugins();
+    void simulateInput();
     Ui::MainWindow *ui;
     QMenu * OpenRecent;
     int verbose;
     int nogui;
+    int run_test;
     uint32_t frame_count;
 
     QMessageBox *download_message = nullptr;