diff --git a/gun-bonsai/CHANGELOG.md b/gun-bonsai/CHANGELOG.md
index 90ae1dd..1c2f369 100644
--- a/gun-bonsai/CHANGELOG.md
+++ b/gun-bonsai/CHANGELOG.md
@@ -4,6 +4,12 @@
   - A `Service` is now included to make it easier to write integrations with
     other mods. It supports RPCs for adding XP or upgrades to players and weapons.
     See `MODDING.md` for details.
+  - You can now change the effective level of an upgrade by pressing left and
+    right on the status screen, to any level between 1 and its max level. (You
+    cannot set an upgrade to level 0; to turn it off, press enter). The tooltip
+    will update to show the current effects of the upgrade. The level change may
+    not take effect immediately for all upgrades, e.g. new elemental debuffs you
+    inflict will use the new level but existing ones will use the old level.
 - Change:
   - `Indestructable` integration updated to support Indestructable 0.3.x. If you
     use the integration, you must update both mods for it to function properly.
diff --git a/gun-bonsai/LANGUAGE.en-menu b/gun-bonsai/LANGUAGE.en-menu
index 28bf6c1..63965f7 100644
--- a/gun-bonsai/LANGUAGE.en-menu
+++ b/gun-bonsai/LANGUAGE.en-menu
@@ -25,6 +25,8 @@ TFLV_MENU_STATUS_TITLE = "Status";
 TFLV_MENU_HEADER_PLAYER_STATUS = "Player Status";
 TFLV_MENU_HEADER_WEAPON_STATUS = "Weapon Status";
 TFLV_MENU_HEADER_WEAPON_LD_EFFECTS = "LegenDoom Effects";
+// Displayed at the bottom of the status menu.
+TFLV_MENU_UPGRADE_CONTROLS_HELP = "↵ Toggle upgrade\n⬅➡ Adjust upgrade level";
 // headers for player/weapon levelup menus
 TFLV_MENU_PLAYER_LEVELUP_TITLE = "Player Level Up!";
 TFLV_MENU_WEAPON_LEVELUP_TITLE = "Weapon Level Up!";
diff --git a/gun-bonsai/ca.ancilla.bonsai/menu/GenericMenu.zs b/gun-bonsai/ca.ancilla.bonsai/menu/GenericMenu.zs
index 43362b3..9057e6e 100644
--- a/gun-bonsai/ca.ancilla.bonsai/menu/GenericMenu.zs
+++ b/gun-bonsai/ca.ancilla.bonsai/menu/GenericMenu.zs
@@ -24,8 +24,9 @@ class ::GenericMenu : TFLV::TooltipOptionMenu {
   }
 
   void PushUpgradeToggle(TFLV::Upgrade::BaseUpgrade upgrade, uint bag_index, uint index) {
-    mDesc.mItems.Push(new("::UpgradeToggle").Init(upgrade, bag_index, index));
-    PushTooltip(upgrade.GetTooltip(upgrade.level));
+    let toggle = new("::UpgradeToggle").Init(upgrade, bag_index, index);
+    mDesc.mItems.Push(toggle);
+    toggle.tt = PushTooltip(upgrade.GetTooltip(upgrade.level));
   }
 
   override bool MenuEvent(int key, bool fromController) {
@@ -84,6 +85,7 @@ class ::UpgradeToggle : ::KeyValueText {
   TFLV::Upgrade::BaseUpgrade upgrade;
   uint bag_index;
   uint index;
+  TFLV::Tooltip tt;
 
   ::UpgradeToggle Init(TFLV::Upgrade::BaseUpgrade upgrade, uint bag_index, uint index) {
     self.upgrade = upgrade;
@@ -96,26 +98,47 @@ class ::UpgradeToggle : ::KeyValueText {
     return self;
   }
 
+  string GetLabel() {
+    if (upgrade.level == upgrade.max_level) {
+      return string.format("%s (%d)", upgrade.GetName(), upgrade.level);
+    } else {
+      return string.format("%s \c[DARKGREY](%d/%d)\c-",
+          upgrade.GetName(), upgrade.level, upgrade.max_level);
+    }
+  }
+
   override bool Selectable() { return true; }
 
   override int Draw(OptionMenuDescriptor d, int y, int indent, bool selected) {
-    if (upgrade.enabled) {
-      drawLabel(indent, y, font.CR_DARKRED);
-      drawValue(indent, y, selected ? font.CR_RED : font.CR_DARKRED, self.value);
-    } else {
+    // Update the tooltip, since it's going to change if the user has wiggled
+    // the effective upgrade level.
+    tt.text = upgrade.GetTooltip(upgrade.level);
+    self.mLabel = GetLabel();
+
+    if (!upgrade.enabled) {
       drawLabel(indent, y, font.CR_DARKRED);
       drawValue(indent, y, selected ? font.CR_DARKGRAY : font.CR_BLACK,
         string.format("\c[BLACK][OFF]\c- %s", self.value));
+    } else {
+      drawLabel(indent, y, font.CR_DARKRED);
+      drawValue(indent, y, selected ? font.CR_RED : font.CR_DARKRED, self.value);
     }
     return indent;
   }
 
   override bool MenuEvent(int key, bool fromController) {
-    if (key != Menu.MKey_Enter)
+    if (key == Menu.MKey_Left) {
+      Menu.MenuSound("menu/change");
+      EventHandler.SendNetworkEvent("bonsai-tune-upgrade", bag_index, index, -1);
+    } else if (key == Menu.MKey_Right) {
+      Menu.MenuSound("menu/change");
+      EventHandler.SendNetworkEvent("bonsai-tune-upgrade", bag_index, index, 1);
+    } else if (key == Menu.MKey_Enter) {
+      Menu.MenuSound("menu/choose");
+      EventHandler.SendNetworkEvent("bonsai-toggle-upgrade", bag_index, index);
+    } else {
       return super.MenuEvent(key, fromController);
-
-    Menu.MenuSound("menu/choose");
-    EventHandler.SendNetworkEvent("bonsai-toggle-upgrade", bag_index, index);
+    }
     return true;
   }
 }
diff --git a/gun-bonsai/ca.ancilla.bonsai/menu/StatusDisplay.zs b/gun-bonsai/ca.ancilla.bonsai/menu/StatusDisplay.zs
index a1a6d9a..9d2f6ed 100644
--- a/gun-bonsai/ca.ancilla.bonsai/menu/StatusDisplay.zs
+++ b/gun-bonsai/ca.ancilla.bonsai/menu/StatusDisplay.zs
@@ -31,6 +31,9 @@ class ::StatusDisplay : ::GenericMenu {
       string.format(StringTable.Localize("$TFLV_MENU_LEVEL"), stats.wlvl),
       string.format(StringTable.Localize("$TFLV_MENU_XP"), stats.wxp, stats.wmax));
     stats.wupgrades.DumpInteractableToMenu(self, 1);
+    PushText(" ", Font.CR_RED);
+    PushText("―――――", Font.CR_WHITE);
+    PushText("$TFLV_MENU_UPGRADE_CONTROLS_HELP", Font.CR_WHITE);
 
     mDesc.mSelectedItem = -1;
     let ld_info = stats.winfo.ld_info;