diff --git a/include/project.h b/include/project.h
index faa8186c..cf16066f 100644
--- a/include/project.h
+++ b/include/project.h
@@ -75,10 +75,10 @@ public:
     QStringList bgEventFacingDirections;
     QStringList trainerTypes;
     QStringList globalScriptLabels;
-    QMap<QString, QMap<QString, int>> metatileLabelsMap;
-    QMap<QString, int> unusedMetatileLabels;
-    QMap<QString, int> metatileBehaviorMap;
-    QMap<int, QString> metatileBehaviorMapInverse;
+    QMap<QString, QMap<QString, uint16_t>> metatileLabelsMap;
+    QMap<QString, uint16_t> unusedMetatileLabels;
+    QMap<QString, uint32_t> metatileBehaviorMap;
+    QMap<uint32_t, QString> metatileBehaviorMapInverse;
     QSet<uint32_t> warpBehaviorValues;
     QMap<QString, QString> facingDirections;
     ParseUtil parser;
@@ -216,7 +216,7 @@ public:
     QString getDefaultSecondaryTilesetLabel();
     QString getDynamicMapDefineName();
     void updateTilesetMetatileLabels(Tileset *tileset);
-    QString buildMetatileLabelsText(const QMap<QString, int> defines);
+    QString buildMetatileLabelsText(const QMap<QString, uint16_t> defines);
     QString findMetatileLabelsTileset(QString label);
 
     void setImportExportPath(QString filename);
diff --git a/include/ui/noscrollcombobox.h b/include/ui/noscrollcombobox.h
index 98cacf70..59c680a3 100644
--- a/include/ui/noscrollcombobox.h
+++ b/include/ui/noscrollcombobox.h
@@ -12,6 +12,7 @@ public:
     void wheelEvent(QWheelEvent *event);
     void setTextItem(const QString &text);
     void setNumberItem(int value);
+    void setHexItem(uint32_t value);
 
 private:
     void setItem(int index, const QString &text);
diff --git a/src/editor.cpp b/src/editor.cpp
index 3193df96..d136da51 100644
--- a/src/editor.cpp
+++ b/src/editor.cpp
@@ -942,8 +942,10 @@ QString Editor::getMetatileDisplayMessage(uint16_t metatileId) {
     QString message = QString("Metatile: %1").arg(Metatile::getMetatileIdString(metatileId));
     if (label.size())
         message += QString(" \"%1\"").arg(label);
-    if (metatile && metatile->behavior()) // Skip MB_NORMAL
-        message += QString(", Behavior: %1").arg(this->project->metatileBehaviorMapInverse.value(metatile->behavior(), QString::number(metatile->behavior())));
+    if (metatile && metatile->behavior() != 0) { // Skip MB_NORMAL
+        const QString behaviorStr = this->project->metatileBehaviorMapInverse.value(metatile->behavior(), "0x" + QString::number(metatile->behavior(), 16));
+        message += QString(", Behavior: %1").arg(behaviorStr);
+    }
     return message;
 }
 
diff --git a/src/project.cpp b/src/project.cpp
index cfd76902..d3e14b1a 100644
--- a/src/project.cpp
+++ b/src/project.cpp
@@ -899,7 +899,7 @@ void Project::updateTilesetMetatileLabels(Tileset *tileset) {
 }
 
 // Given a map of define names to define values, returns a formatted list of #defines
-QString Project::buildMetatileLabelsText(const QMap<QString, int> defines) {
+QString Project::buildMetatileLabelsText(const QMap<QString, uint16_t> defines) {
     QStringList labels = defines.keys();
 
     // Setup for pretty formatting.
@@ -2323,14 +2323,16 @@ bool Project::readMetatileBehaviors() {
     const QStringList prefixes = {projectConfig.getIdentifier(ProjectIdentifier::regex_behaviors)};
     QString filename = projectConfig.getFilePath(ProjectFilePath::constants_metatile_behaviors);
     fileWatcher.addPath(root + "/" + filename);
-    this->metatileBehaviorMap = parser.readCDefinesByPrefix(filename, prefixes);
-    if (this->metatileBehaviorMap.isEmpty()) {
+    QMap<QString, int> defines = parser.readCDefinesByPrefix(filename, prefixes);
+    if (defines.isEmpty()) {
         logError(QString("Failed to read metatile behaviors from %1.").arg(filename));
         return false;
     }
 
-    for (QString defineName : this->metatileBehaviorMap.keys()) {
-        this->metatileBehaviorMapInverse.insert(this->metatileBehaviorMap[defineName], defineName);
+    for (auto i = defines.cbegin(), end = defines.cend(); i != end; i++) {
+        uint32_t value = static_cast<uint32_t>(i.value());
+        this->metatileBehaviorMap.insert(i.key(), value);
+        this->metatileBehaviorMapInverse.insert(value, i.key());
     }
 
     // Construct warp behavior value list for the warp metatile behavior warning
diff --git a/src/ui/noscrollcombobox.cpp b/src/ui/noscrollcombobox.cpp
index ecf2ba3a..ee778df5 100644
--- a/src/ui/noscrollcombobox.cpp
+++ b/src/ui/noscrollcombobox.cpp
@@ -56,3 +56,8 @@ void NoScrollComboBox::setNumberItem(int value)
 {
     this->setItem(this->findData(value), QString::number(value));
 }
+
+void NoScrollComboBox::setHexItem(uint32_t value)
+{
+    this->setItem(this->findData(value), "0x" + QString::number(value, 16).toUpper());
+}
diff --git a/src/ui/tileseteditor.cpp b/src/ui/tileseteditor.cpp
index 7d680b54..77844ffa 100644
--- a/src/ui/tileseteditor.cpp
+++ b/src/ui/tileseteditor.cpp
@@ -373,10 +373,10 @@ void TilesetEditor::onSelectedMetatileChanged(uint16_t metatileId) {
     this->ui->lineEdit_metatileLabel->setText(labels.owned);
     this->ui->lineEdit_metatileLabel->setPlaceholderText(labels.shared);
 
-    this->ui->comboBox_metatileBehaviors->setNumberItem(this->metatile->behavior());
-    this->ui->comboBox_layerType->setNumberItem(this->metatile->layerType());
-    this->ui->comboBox_encounterType->setNumberItem(this->metatile->encounterType());
-    this->ui->comboBox_terrainType->setNumberItem(this->metatile->terrainType());
+    this->ui->comboBox_metatileBehaviors->setHexItem(this->metatile->behavior());
+    this->ui->comboBox_layerType->setHexItem(this->metatile->layerType());
+    this->ui->comboBox_encounterType->setHexItem(this->metatile->encounterType());
+    this->ui->comboBox_terrainType->setHexItem(this->metatile->terrainType());
 }
 
 void TilesetEditor::onHoveredTileChanged(uint16_t tile) {
@@ -493,19 +493,19 @@ void TilesetEditor::on_checkBox_yFlip_stateChanged(int checked)
 void TilesetEditor::on_comboBox_metatileBehaviors_currentTextChanged(const QString &metatileBehavior)
 {
     if (this->metatile) {
-        int behavior;
+        uint32_t behavior;
         if (project->metatileBehaviorMap.contains(metatileBehavior)) {
             behavior = project->metatileBehaviorMap[metatileBehavior];
         } else {
             // Check if user has entered a number value instead
             bool ok;
-            behavior = metatileBehavior.toInt(&ok, 0);
+            behavior = metatileBehavior.toUInt(&ok, 0);
             if (!ok) return;
         }
 
         // This function can also be called when the user selects
         // a different metatile. Stop this from being considered a change.
-        if (this->metatile->behavior() == static_cast<uint32_t>(behavior))
+        if (this->metatile->behavior() == behavior)
             return;
 
         Metatile *prevMetatile = new Metatile(*this->metatile);