diff --git a/src/roles/dullahan.py b/src/roles/dullahan.py
index 67797e6..0fb3e19 100644
--- a/src/roles/dullahan.py
+++ b/src/roles/dullahan.py
@@ -243,7 +243,7 @@ def on_reset(evt, var):
     TARGETS.clear()
 
 @event_listener("get_role_metadata")
-def on_get_role_metadata(evt, cli, var, kind):
+def on_get_role_metadata(evt, var, kind):
     if kind == "night_kills":
         num = 0
         for dull in var.ROLES["dullahan"]:
diff --git a/src/roles/hunter.py b/src/roles/hunter.py
index aad8b10..b5c8554 100644
--- a/src/roles/hunter.py
+++ b/src/roles/hunter.py
@@ -168,7 +168,7 @@ def on_reset(evt, var):
     HUNTERS.clear()
 
 @event_listener("get_role_metadata")
-def on_get_role_metadata(evt, cli, var, kind):
+def on_get_role_metadata(evt, var, kind):
     if kind == "night_kills":
         # hunters is the set of all hunters that have not killed in a *previous* night
         # (if they're in both HUNTERS and KILLS, then they killed tonight and should be counted)
diff --git a/src/roles/shaman.py b/src/roles/shaman.py
index 6c89374..b97fc4a 100644
--- a/src/roles/shaman.py
+++ b/src/roles/shaman.py
@@ -641,7 +641,7 @@ def on_frole_role(evt, cli, var, who, role, oldrole, args):
                         break
 
 @event_listener("get_role_metadata")
-def on_get_role_metadata(evt, cli, var, kind):
+def on_get_role_metadata(evt, var, kind):
     if kind == "night_kills":
         # only add shamans here if they were given a death totem
         # even though retribution kills, it is given a special kill message
diff --git a/src/roles/traitor.py b/src/roles/traitor.py
index c9cb85c..2e6d3c4 100644
--- a/src/roles/traitor.py
+++ b/src/roles/traitor.py
@@ -45,7 +45,7 @@ def on_update_stats3(evt, cli, var, nick, nickrole, nickreveal, nicktpls):
         return
     if var.PHASE == "day" and var.GAMEPHASE == "night":
         mevt = Event("get_role_metadata", {})
-        mevt.dispatch(cli, var, "night_kills")
+        mevt.dispatch(var, "night_kills")
         nonwolf = 0
         total = 0
         for role, num in mevt.data.items():
diff --git a/src/roles/vengefulghost.py b/src/roles/vengefulghost.py
index 50dddef..d7a2741 100644
--- a/src/roles/vengefulghost.py
+++ b/src/roles/vengefulghost.py
@@ -248,8 +248,10 @@ def on_reset(evt, var):
     GHOSTS.clear()
 
 @event_listener("get_role_metadata")
-def on_get_role_metadata(evt, cli, var, kind):
+def on_get_role_metadata(evt, var, kind):
     if kind == "night_kills":
         evt.data["vengeful ghost"] = sum(1 for against in GHOSTS.values() if against[0] != "!")
+    elif kind == "special_keys":
+        evt.data["vengeful ghost"] = {"vg activated", "vg driven off"}
 
 # vim: set sw=4 expandtab:
diff --git a/src/roles/vigilante.py b/src/roles/vigilante.py
index f4ea1fe..f48b81c 100644
--- a/src/roles/vigilante.py
+++ b/src/roles/vigilante.py
@@ -151,7 +151,7 @@ def on_reset(evt, var):
     PASSED.clear()
 
 @event_listener("get_role_metadata")
-def on_get_role_metadata(evt, cli, var, kind):
+def on_get_role_metadata(evt, var, kind):
     if kind == "night_kills":
         evt.data["vigilante"] = len(var.ROLES["vigilante"])
 
diff --git a/src/roles/wolf.py b/src/roles/wolf.py
index d6f1c49..f8f91fd 100644
--- a/src/roles/wolf.py
+++ b/src/roles/wolf.py
@@ -450,7 +450,7 @@ def on_reset(evt, var):
     KILLS.clear()
 
 @event_listener("get_role_metadata")
-def on_get_role_metadata(evt, cli, var, kind):
+def on_get_role_metadata(evt, var, kind):
     if kind == "night_kills":
         if var.DISEASED_WOLVES:
             evt.data["wolf"] = 0
diff --git a/src/settings.py b/src/settings.py
index dafef99..129960c 100644
--- a/src/settings.py
+++ b/src/settings.py
@@ -215,6 +215,9 @@ ROLE_ALIASES = {
         "drunk": "village drunk",
         "cs": "crazed shaman",
         "potato": "villager",
+        "vg": "vengeful ghost",
+        "mm": "matchmaker",
+        "ms": "mad scientist",
         }
 
 # TODO: move this to a game mode called "fixed" once we implement a way to randomize roles (and have that game mode be called "random")
diff --git a/src/wolfgame.py b/src/wolfgame.py
index 38de752..3f07fe6 100644
--- a/src/wolfgame.py
+++ b/src/wolfgame.py
@@ -6784,9 +6784,14 @@ def player_stats(cli, nick, chan, rest):
     else:
         role = " ".join(params[1:])
         if role not in var.ROLE_GUIDE.keys():
-            matches = complete_match(role, var.ROLE_GUIDE.keys() | {"lover"})
-            if not matches and role.lower() in var.ROLE_ALIASES:
+            special_keys = {"lover"}
+            evt = Event("get_role_metadata", {})
+            evt.dispatch(var, "special_keys")
+            special_keys = functools.reduce(lambda x, y: x | y, evt.data.values(), special_keys)
+            if role.lower() in var.ROLE_ALIASES:
                 matches = (var.ROLE_ALIASES[role.lower()],)
+            else:
+                matches = complete_match(role, var.ROLE_GUIDE.keys() | special_keys)
             if not matches:
                 reply(cli, nick, chan, messages["no_such_role"].format(role))
                 return