diff --git a/Source/Core/DolphinQt/CMakeLists.txt b/Source/Core/DolphinQt/CMakeLists.txt
index 85bc526ae6..61b1ad6142 100644
--- a/Source/Core/DolphinQt/CMakeLists.txt
+++ b/Source/Core/DolphinQt/CMakeLists.txt
@@ -111,7 +111,7 @@ add_executable(dolphin-emu
   QtUtils/WinIconHelper.cpp
   QtUtils/WrapInScrollArea.cpp
   QtUtils/AspectRatioWidget.cpp
-	ResourcePackManager.cpp
+  ResourcePackManager.cpp
   Settings/AdvancedPane.cpp
   Settings/AudioPane.cpp
   Settings/GameCubePane.cpp
@@ -122,6 +122,7 @@ add_executable(dolphin-emu
   Settings/USBDeviceAddToWhitelistDialog.cpp
   TAS/GCTASInputWindow.cpp
   TAS/WiiTASInputWindow.cpp
+  TAS/TASCheckBox.cpp
   TAS/TASInputWindow.cpp
   TAS/StickWidget.cpp
   TAS/IRWidget.cpp
diff --git a/Source/Core/DolphinQt/DolphinQt.vcxproj b/Source/Core/DolphinQt/DolphinQt.vcxproj
index e2fefa340c..243560abf6 100644
--- a/Source/Core/DolphinQt/DolphinQt.vcxproj
+++ b/Source/Core/DolphinQt/DolphinQt.vcxproj
@@ -115,6 +115,7 @@
     <QtMoc Include="FIFO\FIFOPlayerWindow.h" />
     <QtMoc Include="TAS\GCTASInputWindow.h" />
     <QtMoc Include="TAS\WiiTASInputWindow.h" />
+    <QtMoc Include="TAS\TASCheckBox.h" />
     <QtMoc Include="TAS\TASInputWindow.h" />
     <QtMoc Include="TAS\StickWidget.h" />
     <QtMoc Include="TAS\IRWidget.h" />
@@ -263,6 +264,7 @@
     <ClCompile Include="$(QtMocOutPrefix)SettingsWindow.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)SoftwareRendererWidget.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)StickWidget.cpp" />
+    <ClCompile Include="$(QtMocOutPrefix)TASCheckBox.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)TASInputWindow.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)ToolBar.cpp" />
     <ClCompile Include="$(QtMocOutPrefix)USBDeviceAddToWhitelistDialog.cpp" />
@@ -342,6 +344,7 @@
     <ClCompile Include="ResourcePackManager.cpp" />
     <ClCompile Include="TAS\GCTASInputWindow.cpp" />
     <ClCompile Include="TAS\WiiTASInputWindow.cpp" />
+    <ClCompile Include="TAS\TASCheckBox.cpp" />
     <ClCompile Include="TAS\TASInputWindow.cpp" />
     <ClCompile Include="TAS\StickWidget.cpp" />
     <ClCompile Include="TAS\IRWidget.cpp" />
diff --git a/Source/Core/DolphinQt/TAS/GCTASInputWindow.cpp b/Source/Core/DolphinQt/TAS/GCTASInputWindow.cpp
index f45c5fa9aa..1cb606b807 100644
--- a/Source/Core/DolphinQt/TAS/GCTASInputWindow.cpp
+++ b/Source/Core/DolphinQt/TAS/GCTASInputWindow.cpp
@@ -14,6 +14,8 @@
 
 #include "Common/CommonTypes.h"
 
+#include "DolphinQt/TAS/TASCheckBox.h"
+
 #include "InputCommon/GCPadStatus.h"
 
 GCTASInputWindow::GCTASInputWindow(QWidget* parent, int num) : TASInputWindow(parent)
@@ -41,18 +43,18 @@ GCTASInputWindow::GCTASInputWindow(QWidget* parent, int num) : TASInputWindow(pa
   triggers_layout->addLayout(r_trigger_layout);
   m_triggers_box->setLayout(triggers_layout);
 
-  m_a_button = new QCheckBox(QStringLiteral("&A"));
-  m_b_button = new QCheckBox(QStringLiteral("&B"));
-  m_x_button = new QCheckBox(QStringLiteral("&X"));
-  m_y_button = new QCheckBox(QStringLiteral("&Y"));
-  m_z_button = new QCheckBox(QStringLiteral("&Z"));
-  m_l_button = new QCheckBox(QStringLiteral("&L"));
-  m_r_button = new QCheckBox(QStringLiteral("&R"));
-  m_start_button = new QCheckBox(QStringLiteral("&START"));
-  m_left_button = new QCheckBox(QStringLiteral("L&eft"));
-  m_up_button = new QCheckBox(QStringLiteral("&Up"));
-  m_down_button = new QCheckBox(QStringLiteral("&Down"));
-  m_right_button = new QCheckBox(QStringLiteral("R&ight"));
+  m_a_button = new TASCheckBox(QStringLiteral("&A"));
+  m_b_button = new TASCheckBox(QStringLiteral("&B"));
+  m_x_button = new TASCheckBox(QStringLiteral("&X"));
+  m_y_button = new TASCheckBox(QStringLiteral("&Y"));
+  m_z_button = new TASCheckBox(QStringLiteral("&Z"));
+  m_l_button = new TASCheckBox(QStringLiteral("&L"));
+  m_r_button = new TASCheckBox(QStringLiteral("&R"));
+  m_start_button = new TASCheckBox(QStringLiteral("&START"));
+  m_left_button = new TASCheckBox(QStringLiteral("L&eft"));
+  m_up_button = new TASCheckBox(QStringLiteral("&Up"));
+  m_down_button = new TASCheckBox(QStringLiteral("&Down"));
+  m_right_button = new TASCheckBox(QStringLiteral("R&ight"));
 
   auto* buttons_layout = new QGridLayout;
   buttons_layout->addWidget(m_a_button, 0, 0);
diff --git a/Source/Core/DolphinQt/TAS/GCTASInputWindow.h b/Source/Core/DolphinQt/TAS/GCTASInputWindow.h
index a75a4a76d9..724eb05846 100644
--- a/Source/Core/DolphinQt/TAS/GCTASInputWindow.h
+++ b/Source/Core/DolphinQt/TAS/GCTASInputWindow.h
@@ -6,9 +6,9 @@
 
 #include "DolphinQt/TAS/TASInputWindow.h"
 
-class QCheckBox;
 class QGroupBox;
 class QSpinBox;
+class TASCheckBox;
 struct GCPadStatus;
 
 class GCTASInputWindow : public TASInputWindow
@@ -19,18 +19,18 @@ public:
   void GetValues(GCPadStatus* pad);
 
 private:
-  QCheckBox* m_a_button;
-  QCheckBox* m_b_button;
-  QCheckBox* m_x_button;
-  QCheckBox* m_y_button;
-  QCheckBox* m_z_button;
-  QCheckBox* m_l_button;
-  QCheckBox* m_r_button;
-  QCheckBox* m_start_button;
-  QCheckBox* m_left_button;
-  QCheckBox* m_up_button;
-  QCheckBox* m_down_button;
-  QCheckBox* m_right_button;
+  TASCheckBox* m_a_button;
+  TASCheckBox* m_b_button;
+  TASCheckBox* m_x_button;
+  TASCheckBox* m_y_button;
+  TASCheckBox* m_z_button;
+  TASCheckBox* m_l_button;
+  TASCheckBox* m_r_button;
+  TASCheckBox* m_start_button;
+  TASCheckBox* m_left_button;
+  TASCheckBox* m_up_button;
+  TASCheckBox* m_down_button;
+  TASCheckBox* m_right_button;
   QSpinBox* m_l_trigger_value;
   QSpinBox* m_r_trigger_value;
   QSpinBox* m_x_main_stick_value;
diff --git a/Source/Core/DolphinQt/TAS/TASCheckBox.cpp b/Source/Core/DolphinQt/TAS/TASCheckBox.cpp
new file mode 100644
index 0000000000..9f4d34514e
--- /dev/null
+++ b/Source/Core/DolphinQt/TAS/TASCheckBox.cpp
@@ -0,0 +1,40 @@
+// Copyright 2019 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#include "DolphinQt/TAS/TASCheckBox.h"
+
+#include <QMouseEvent>
+
+#include "Core/Movie.h"
+
+TASCheckBox::TASCheckBox(const QString& text) : QCheckBox(text)
+{
+  setTristate(true);
+}
+
+bool TASCheckBox::GetValue()
+{
+  if (checkState() == Qt::PartiallyChecked)
+    return Movie::GetCurrentFrame() % 2 == static_cast<u64>(m_trigger_on_odd);
+
+  return isChecked();
+}
+
+void TASCheckBox::mousePressEvent(QMouseEvent* event)
+{
+  if (event->button() != Qt::RightButton)
+  {
+    setChecked(!isChecked());
+    return;
+  }
+
+  if (checkState() == Qt::PartiallyChecked)
+  {
+    setCheckState(Qt::Unchecked);
+    return;
+  }
+
+  m_trigger_on_odd = Movie::GetCurrentFrame() % 2 == 0;
+  setCheckState(Qt::PartiallyChecked);
+}
diff --git a/Source/Core/DolphinQt/TAS/TASCheckBox.h b/Source/Core/DolphinQt/TAS/TASCheckBox.h
new file mode 100644
index 0000000000..a39cd446bf
--- /dev/null
+++ b/Source/Core/DolphinQt/TAS/TASCheckBox.h
@@ -0,0 +1,24 @@
+// Copyright 2019 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QCheckBox>
+
+class QMouseEvent;
+
+class TASCheckBox : public QCheckBox
+{
+  Q_OBJECT
+public:
+  explicit TASCheckBox(const QString& text);
+
+  bool GetValue();
+
+protected:
+  void mousePressEvent(QMouseEvent* event) override;
+
+private:
+  bool m_trigger_on_odd;
+};
diff --git a/Source/Core/DolphinQt/TAS/TASInputWindow.cpp b/Source/Core/DolphinQt/TAS/TASInputWindow.cpp
index e87f358889..a559ae887c 100644
--- a/Source/Core/DolphinQt/TAS/TASInputWindow.cpp
+++ b/Source/Core/DolphinQt/TAS/TASInputWindow.cpp
@@ -18,6 +18,7 @@
 #include "DolphinQt/QtUtils/AspectRatioWidget.h"
 #include "DolphinQt/QtUtils/QueueOnObject.h"
 #include "DolphinQt/TAS/StickWidget.h"
+#include "DolphinQt/TAS/TASCheckBox.h"
 #include "DolphinQt/TAS/TASInputWindow.h"
 
 #include "InputCommon/GCPadStatus.h"
@@ -130,7 +131,7 @@ QSpinBox* TASInputWindow::CreateSliderValuePair(QBoxLayout* layout, u16 max,
 }
 
 template <typename UX>
-void TASInputWindow::GetButton(QCheckBox* checkbox, UX& buttons, UX mask)
+void TASInputWindow::GetButton(TASCheckBox* checkbox, UX& buttons, UX mask)
 {
   const bool pressed = (buttons & mask) != 0;
   if (m_use_controller->isChecked())
@@ -147,13 +148,13 @@ void TASInputWindow::GetButton(QCheckBox* checkbox, UX& buttons, UX mask)
     }
   }
 
-  if (checkbox->isChecked())
+  if (checkbox->GetValue())
     buttons |= mask;
   else
     buttons &= ~mask;
 }
-template void TASInputWindow::GetButton<u8>(QCheckBox* button, u8& pad, u8 mask);
-template void TASInputWindow::GetButton<u16>(QCheckBox* button, u16& pad, u16 mask);
+template void TASInputWindow::GetButton<u8>(TASCheckBox* button, u8& pad, u8 mask);
+template void TASInputWindow::GetButton<u16>(TASCheckBox* button, u16& pad, u16 mask);
 
 void TASInputWindow::GetSpinBoxU8(QSpinBox* spin, u8& controller_value)
 {
diff --git a/Source/Core/DolphinQt/TAS/TASInputWindow.h b/Source/Core/DolphinQt/TAS/TASInputWindow.h
index 66d6239abf..90e25b03f2 100644
--- a/Source/Core/DolphinQt/TAS/TASInputWindow.h
+++ b/Source/Core/DolphinQt/TAS/TASInputWindow.h
@@ -15,6 +15,7 @@ class QDialog;
 class QGroupBox;
 class QSpinBox;
 class QString;
+class TASCheckBox;
 
 class TASInputWindow : public QDialog
 {
@@ -32,13 +33,13 @@ protected:
                                   Qt::Orientation orientation, QWidget* shortcut_widget,
                                   bool invert = false);
   template <typename UX>
-  void GetButton(QCheckBox* button, UX& pad, UX mask);
+  void GetButton(TASCheckBox* button, UX& pad, UX mask);
   void GetSpinBoxU8(QSpinBox* spin, u8& controller_value);
   void GetSpinBoxU16(QSpinBox* spin, u16& controller_value);
   QCheckBox* m_use_controller;
 
 private:
-  std::map<QCheckBox*, bool> m_checkbox_set_by_controller;
+  std::map<TASCheckBox*, bool> m_checkbox_set_by_controller;
   std::map<QSpinBox*, u8> m_spinbox_most_recent_values_u8;
   std::map<QSpinBox*, u8> m_spinbox_most_recent_values_u16;
 };
diff --git a/Source/Core/DolphinQt/TAS/WiiTASInputWindow.cpp b/Source/Core/DolphinQt/TAS/WiiTASInputWindow.cpp
index c22f28dd2e..904e21bf15 100644
--- a/Source/Core/DolphinQt/TAS/WiiTASInputWindow.cpp
+++ b/Source/Core/DolphinQt/TAS/WiiTASInputWindow.cpp
@@ -31,6 +31,7 @@
 #include "DolphinQt/QtUtils/AspectRatioWidget.h"
 #include "DolphinQt/QtUtils/QueueOnObject.h"
 #include "DolphinQt/TAS/IRWidget.h"
+#include "DolphinQt/TAS/TASCheckBox.h"
 #include "DolphinQt/TAS/WiiTASInputWindow.h"
 
 #include "InputCommon/InputConfig.h"
@@ -161,19 +162,19 @@ WiiTASInputWindow::WiiTASInputWindow(QWidget* parent, int num) : TASInputWindow(
   triggers_layout->addLayout(r_trigger_layout);
   m_triggers_box->setLayout(triggers_layout);
 
-  m_a_button = new QCheckBox(QStringLiteral("&A"));
-  m_b_button = new QCheckBox(QStringLiteral("&B"));
-  m_1_button = new QCheckBox(QStringLiteral("&1"));
-  m_2_button = new QCheckBox(QStringLiteral("&2"));
-  m_plus_button = new QCheckBox(QStringLiteral("&+"));
-  m_minus_button = new QCheckBox(QStringLiteral("&-"));
-  m_home_button = new QCheckBox(QStringLiteral("&HOME"));
-  m_left_button = new QCheckBox(QStringLiteral("&Left"));
-  m_up_button = new QCheckBox(QStringLiteral("&Up"));
-  m_down_button = new QCheckBox(QStringLiteral("&Down"));
-  m_right_button = new QCheckBox(QStringLiteral("&Right"));
-  m_c_button = new QCheckBox(QStringLiteral("&C"));
-  m_z_button = new QCheckBox(QStringLiteral("&Z"));
+  m_a_button = new TASCheckBox(QStringLiteral("&A"));
+  m_b_button = new TASCheckBox(QStringLiteral("&B"));
+  m_1_button = new TASCheckBox(QStringLiteral("&1"));
+  m_2_button = new TASCheckBox(QStringLiteral("&2"));
+  m_plus_button = new TASCheckBox(QStringLiteral("&+"));
+  m_minus_button = new TASCheckBox(QStringLiteral("&-"));
+  m_home_button = new TASCheckBox(QStringLiteral("&HOME"));
+  m_left_button = new TASCheckBox(QStringLiteral("&Left"));
+  m_up_button = new TASCheckBox(QStringLiteral("&Up"));
+  m_down_button = new TASCheckBox(QStringLiteral("&Down"));
+  m_right_button = new TASCheckBox(QStringLiteral("&Right"));
+  m_c_button = new TASCheckBox(QStringLiteral("&C"));
+  m_z_button = new TASCheckBox(QStringLiteral("&Z"));
 
   auto* buttons_layout = new QGridLayout;
   buttons_layout->addWidget(m_a_button, 0, 0);
@@ -202,21 +203,21 @@ WiiTASInputWindow::WiiTASInputWindow(QWidget* parent, int num) : TASInputWindow(
   m_nunchuk_buttons_box = new QGroupBox(tr("Nunchuk Buttons"));
   m_nunchuk_buttons_box->setLayout(nunchuk_buttons_layout);
 
-  m_classic_a_button = new QCheckBox(QStringLiteral("&A"));
-  m_classic_b_button = new QCheckBox(QStringLiteral("&B"));
-  m_classic_x_button = new QCheckBox(QStringLiteral("&X"));
-  m_classic_y_button = new QCheckBox(QStringLiteral("&Y"));
-  m_classic_l_button = new QCheckBox(QStringLiteral("&L"));
-  m_classic_r_button = new QCheckBox(QStringLiteral("&R"));
-  m_classic_zl_button = new QCheckBox(QStringLiteral("&ZL"));
-  m_classic_zr_button = new QCheckBox(QStringLiteral("ZR"));
-  m_classic_plus_button = new QCheckBox(QStringLiteral("&+"));
-  m_classic_minus_button = new QCheckBox(QStringLiteral("&-"));
-  m_classic_home_button = new QCheckBox(QStringLiteral("&HOME"));
-  m_classic_left_button = new QCheckBox(QStringLiteral("L&eft"));
-  m_classic_up_button = new QCheckBox(QStringLiteral("&Up"));
-  m_classic_down_button = new QCheckBox(QStringLiteral("&Down"));
-  m_classic_right_button = new QCheckBox(QStringLiteral("R&ight"));
+  m_classic_a_button = new TASCheckBox(QStringLiteral("&A"));
+  m_classic_b_button = new TASCheckBox(QStringLiteral("&B"));
+  m_classic_x_button = new TASCheckBox(QStringLiteral("&X"));
+  m_classic_y_button = new TASCheckBox(QStringLiteral("&Y"));
+  m_classic_l_button = new TASCheckBox(QStringLiteral("&L"));
+  m_classic_r_button = new TASCheckBox(QStringLiteral("&R"));
+  m_classic_zl_button = new TASCheckBox(QStringLiteral("&ZL"));
+  m_classic_zr_button = new TASCheckBox(QStringLiteral("ZR"));
+  m_classic_plus_button = new TASCheckBox(QStringLiteral("&+"));
+  m_classic_minus_button = new TASCheckBox(QStringLiteral("&-"));
+  m_classic_home_button = new TASCheckBox(QStringLiteral("&HOME"));
+  m_classic_left_button = new TASCheckBox(QStringLiteral("L&eft"));
+  m_classic_up_button = new TASCheckBox(QStringLiteral("&Up"));
+  m_classic_down_button = new TASCheckBox(QStringLiteral("&Down"));
+  m_classic_right_button = new TASCheckBox(QStringLiteral("R&ight"));
 
   auto* classic_buttons_layout = new QGridLayout;
   classic_buttons_layout->addWidget(m_classic_a_button, 0, 0);
diff --git a/Source/Core/DolphinQt/TAS/WiiTASInputWindow.h b/Source/Core/DolphinQt/TAS/WiiTASInputWindow.h
index d3a830b138..0d75bd1a9d 100644
--- a/Source/Core/DolphinQt/TAS/WiiTASInputWindow.h
+++ b/Source/Core/DolphinQt/TAS/WiiTASInputWindow.h
@@ -16,9 +16,9 @@ namespace WiimoteEmu
 class EncryptionKey;
 }
 
-class QCheckBox;
 class QGroupBox;
 class QSpinBox;
+class TASCheckBox;
 
 class WiiTASInputWindow : public TASInputWindow
 {
@@ -31,34 +31,34 @@ public:
 private:
   void UpdateExt(u8 ext);
   int m_num;
-  QCheckBox* m_a_button;
-  QCheckBox* m_b_button;
-  QCheckBox* m_1_button;
-  QCheckBox* m_2_button;
-  QCheckBox* m_plus_button;
-  QCheckBox* m_minus_button;
-  QCheckBox* m_home_button;
-  QCheckBox* m_left_button;
-  QCheckBox* m_up_button;
-  QCheckBox* m_down_button;
-  QCheckBox* m_right_button;
-  QCheckBox* m_c_button;
-  QCheckBox* m_z_button;
-  QCheckBox* m_classic_a_button;
-  QCheckBox* m_classic_b_button;
-  QCheckBox* m_classic_x_button;
-  QCheckBox* m_classic_y_button;
-  QCheckBox* m_classic_plus_button;
-  QCheckBox* m_classic_minus_button;
-  QCheckBox* m_classic_l_button;
-  QCheckBox* m_classic_r_button;
-  QCheckBox* m_classic_zl_button;
-  QCheckBox* m_classic_zr_button;
-  QCheckBox* m_classic_home_button;
-  QCheckBox* m_classic_left_button;
-  QCheckBox* m_classic_up_button;
-  QCheckBox* m_classic_down_button;
-  QCheckBox* m_classic_right_button;
+  TASCheckBox* m_a_button;
+  TASCheckBox* m_b_button;
+  TASCheckBox* m_1_button;
+  TASCheckBox* m_2_button;
+  TASCheckBox* m_plus_button;
+  TASCheckBox* m_minus_button;
+  TASCheckBox* m_home_button;
+  TASCheckBox* m_left_button;
+  TASCheckBox* m_up_button;
+  TASCheckBox* m_down_button;
+  TASCheckBox* m_right_button;
+  TASCheckBox* m_c_button;
+  TASCheckBox* m_z_button;
+  TASCheckBox* m_classic_a_button;
+  TASCheckBox* m_classic_b_button;
+  TASCheckBox* m_classic_x_button;
+  TASCheckBox* m_classic_y_button;
+  TASCheckBox* m_classic_plus_button;
+  TASCheckBox* m_classic_minus_button;
+  TASCheckBox* m_classic_l_button;
+  TASCheckBox* m_classic_r_button;
+  TASCheckBox* m_classic_zl_button;
+  TASCheckBox* m_classic_zr_button;
+  TASCheckBox* m_classic_home_button;
+  TASCheckBox* m_classic_left_button;
+  TASCheckBox* m_classic_up_button;
+  TASCheckBox* m_classic_down_button;
+  TASCheckBox* m_classic_right_button;
   QSpinBox* m_remote_orientation_x_value;
   QSpinBox* m_remote_orientation_y_value;
   QSpinBox* m_remote_orientation_z_value;