diff --git a/platforms/_registry.yml b/platforms/_registry.yml
index 0d232c1c..019d5506 100644
--- a/platforms/_registry.yml
+++ b/platforms/_registry.yml
@@ -413,7 +413,6 @@ platforms:
     schedule: monthly
     cores:
     - applewin
-    - ares
     - azahar
     - beetle_ngp
     - beetle_pce
diff --git a/platforms/bizhawk.yml b/platforms/bizhawk.yml
index 86dccb06..47645b98 100644
--- a/platforms/bizhawk.yml
+++ b/platforms/bizhawk.yml
@@ -26,7 +26,6 @@ cores:
 - handy
 - quicknes
 - genesis_plus_gx
-- ares
 - mupen64plus_next
 - puae
 - prboom
diff --git a/scripts/scraper/bizhawk_scraper.py b/scripts/scraper/bizhawk_scraper.py
index e511f22a..a19972dd 100644
--- a/scripts/scraper/bizhawk_scraper.py
+++ b/scripts/scraper/bizhawk_scraper.py
@@ -127,7 +127,9 @@ BIZHAWK_CORES = [
     "handy",
     "quicknes",
     "genesis_plus_gx",
-    "ares",
+    # Ares64 is BizHawk's N64 core only; its firmware (the 64DD IPL) is in
+    # FirmwareDatabase.cs. The ares profile's thirty systems are not what
+    # BizHawk runs ares for.
     "mupen64plus_next",
     "puae",
     "prboom",
diff --git a/tests/test_scraper_contract.py b/tests/test_scraper_contract.py
index 4602fb6d..31d2a689 100644
--- a/tests/test_scraper_contract.py
+++ b/tests/test_scraper_contract.py
@@ -331,6 +331,21 @@ class RetroDeckCoresAreItsComponents(unittest.TestCase):
         self.assertNotIn("cores", registry["platforms"]["retrodeck"])
 
 
+class BizHawkRunsAresForN64Only(unittest.TestCase):
+    """BizHawk embeds ares as Ares64, its N64 core; mapping it to the ares
+    profile claimed thirty systems and accused FirmwareDatabase.cs of a
+    wrong MSX.rom it never declared for ares."""
+
+    def test_ares_is_not_a_bizhawk_core(self):
+        import yaml
+
+        root = Path(__file__).resolve().parents[1]
+        platform = yaml.safe_load((root / "platforms" / "bizhawk.yml").read_text())
+        registry = yaml.safe_load((root / "platforms" / "_registry.yml").read_text())
+        self.assertNotIn("ares", platform["cores"])
+        self.assertNotIn("ares", registry["platforms"]["bizhawk"]["cores"])
+
+
 class UnreadableReleaseStopsTheScrape(unittest.TestCase):
     """A failed tag lookup fell back to master, or to an empty or invented
     version. BizHawk, RomM, Batocera and Recalbox then wrote a YAML read from