diff --git a/README.md b/README.md
index aee2a5b..a30097d 100644
--- a/README.md
+++ b/README.md
@@ -9,9 +9,9 @@ Run [start.bat (Windows)](start.bat) or [start.sh (Linux, MacOS)](start.sh)
 [web interface](https://github.com/drmext/BounceTrippy/releases), [score import](utils/db)
 
 ## Playable Games
-- IIDX 18-20, 28-32 (Online Arena/BPL support)
+- IIDX 18-20, 29-33 (Online Arena/BPL support)
 - DDR A20P, A3 (OmniMIX support w/ DAN & pfree score saving hack)
-- GD 6-10 (Battle Mode support)
+- GD 6-10 DELTA (Battle Mode support)
 - DRS
 - NOST 3
 - SDVX 6 2020-2023
diff --git a/modules/gitadora/gameend.py b/modules/gitadora/gameend.py
index 9cc967b..ac33a97 100644
--- a/modules/gitadora/gameend.py
+++ b/modules/gitadora/gameend.py
@@ -25,9 +25,9 @@ async def gitadora_gameend_regist(ver: str, request: Request):
     game_version = request_info["game_version"]
     spec = request_info["spec"]
 
-    if spec == "A":
+    if spec in ("A", "C"):
         g = "guitarfreaks"
-    elif spec == "B":
+    elif spec in ("B", "D"):
         g = "drummania"
 
     root = request_info["root"][0]
diff --git a/modules/gitadora/gametop.py b/modules/gitadora/gametop.py
index 2628040..99d940b 100644
--- a/modules/gitadora/gametop.py
+++ b/modules/gitadora/gametop.py
@@ -28,9 +28,9 @@ async def gitadora_gametop_get(ver: str, request: Request):
     game_version = request_info["game_version"]
     spec = request_info["spec"]
 
-    if spec == "A":
+    if spec in ("A", "C"):
         g = "guitarfreaks"
-    elif spec == "B":
+    elif spec in ("B", "D"):
         g = "drummania"
 
     data = request_info["root"][0].find("player")
diff --git a/modules/gitadora/playablemusic.py b/modules/gitadora/playablemusic.py
index 456ddab..a423fce 100644
--- a/modules/gitadora/playablemusic.py
+++ b/modules/gitadora/playablemusic.py
@@ -12,6 +12,12 @@ router.model_whitelist = ["M32"]
 @router.post("/{gameinfo}/{ver}_playablemusic/get")
 async def gitadora_playablemusic_get(ver: str, request: Request):
     request_info = await core_process_request(request)
+    spec = request_info["spec"]
+
+    if spec in ("A", "B"):
+        is_delta = False
+    elif spec in ("C", "D"):
+        is_delta = True
 
     # the game freezes if response has no songs
     # so make sure there is at least one
@@ -56,10 +62,18 @@ async def gitadora_playablemusic_get(ver: str, request: Request):
     if not short_ver:
         short_ver = "MISSING_FALLBACK"
 
-    for f in (
-        path.join("modules", "gitadora", f"mdb_{short_ver}.xml"),
-        path.join(f"mdb_{short_ver}.xml"),
-    ):
+    if is_delta == True:
+        paths = (
+            path.join("modules", "gitadora", f"mdb_{short_ver}_delta.xml"),
+            path.join(f"mdb_{short_ver}_delta.xml"),
+        )
+    else:
+        paths = (
+            path.join("modules", "gitadora", f"mdb_{short_ver}.xml"),
+            path.join(f"mdb_{short_ver}.xml"),
+        )
+
+    for f in paths:
         if path.exists(f):
             with open(f, "r", encoding="utf-8") as fp: