diff --git a/config/dedup.us.yaml b/config/dedup.us.yaml
index 2848aa1aa..2d1e4f89b 100644
--- a/config/dedup.us.yaml
+++ b/config/dedup.us.yaml
@@ -14656,3 +14656,10 @@ groups:
     func: DEFINE_func_8018942C
     vram: 0x8018942C
     binaries: [ov_SC03_014, ov_SC03_015]
+  - id: E_func_801878B8
+    tier: h_exact
+    hash: e765f85ad086fe8774b5fb4a8c8c61f413ade4aa
+    source: src/shared/engine_core.h
+    func: DEFINE_func_801878B8
+    vram: 0x801878B8
+    binaries: [ov_SC03_118, ov_SC03_119]
diff --git a/src/ov_SC03_118/ov_SC03_118_jr_801863CC.c b/src/ov_SC03_118/ov_SC03_118_jr_801863CC.c
index 8ed33a0cf..30a3fe9c1 100644
--- a/src/ov_SC03_118/ov_SC03_118_jr_801863CC.c
+++ b/src/ov_SC03_118/ov_SC03_118_jr_801863CC.c
@@ -3745,24 +3745,7 @@ void func_80187674(s32 a0)
 
 #include "common.h"
 
-extern void (*D_801C700C[])(void);
-extern void func_80049CAC(s32 a0, s32 a1);
-
-void func_801878B8(void *a0) {
-    D_801C700C[*(u16 *)(a0 + 2)]();
-
-    if (*(u16 *)a0 != 0) {
-        if ((*(s16 *)(a0 + 0x70)) == 0 || (*(s16 *)(a0 + 0x70)) == 7) {
-            func_80049CAC(*(s32 *)(a0 + 0x20) + 0x10, *(s32 *)(a0 + 0x20) + 0x34);
-        }
-
-        if ((*(s16 *)(a0 + 0x70)) == 0xF) {
-            func_80049CAC(*(s32 *)(a0 + 0x20) + 0x10, *(s32 *)(a0 + 0x20) + 0x34);
-        }
-
-        func_8012B260((u8 *)a0);
-    }
-}
+DEFINE_func_801878B8()  /* dedup: shared engine-core @0x801878B8 (src/shared) */
 
 
 #include "common.h"
diff --git a/src/ov_SC03_119/ov_SC03_119_jr_801863CC.c b/src/ov_SC03_119/ov_SC03_119_jr_801863CC.c
index 810c74c1d..57d62c22b 100644
--- a/src/ov_SC03_119/ov_SC03_119_jr_801863CC.c
+++ b/src/ov_SC03_119/ov_SC03_119_jr_801863CC.c
@@ -3670,7 +3670,7 @@ void func_80187674(s32 a0)
 }
 
 
-INCLUDE_ASM("asm/ov_SC03_119/nonmatchings/ov_SC03_119_jr_801863CC", func_801878B8);
+DEFINE_func_801878B8()  /* dedup: shared engine-core @0x801878B8 (src/shared) */
 
 
 extern u8 *func_8012913C(s32 a0);
diff --git a/src/shared/engine_core.h b/src/shared/engine_core.h
index 2a3f7768e..aa6e7979d 100644
--- a/src/shared/engine_core.h
+++ b/src/shared/engine_core.h
@@ -60637,6 +60637,22 @@
         ((void (*)(s32))func_80178970)(arg0); \
     }
 
+#define DEFINE_func_801878B8() \
+    extern void (*D_801C700C[])(void); \
+    extern void func_80049CAC(s32 a0, s32 a1); \
+    void func_801878B8(void *a0) { \
+        D_801C700C[*(u16 *)(a0 + 2)](); \
+        if (*(u16 *)a0 != 0) { \
+            if ((*(s16 *)(a0 + 0x70)) == 0 || (*(s16 *)(a0 + 0x70)) == 7) { \
+                func_80049CAC(*(s32 *)(a0 + 0x20) + 0x10, *(s32 *)(a0 + 0x20) + 0x34); \
+            } \
+            if ((*(s16 *)(a0 + 0x70)) == 0xF) { \
+                func_80049CAC(*(s32 *)(a0 + 0x20) + 0x10, *(s32 *)(a0 + 0x20) + 0x34); \
+            } \
+            func_8012B260((u8 *)a0); \
+        } \
+    }
+
 #endif
 
 #define DEFINE_func_80128EA8() \
@@ -150679,4 +150695,20 @@
         ((void (*)(s32))func_80178970)(arg0); \
     }
 
+#define DEFINE_func_801878B8() \
+    extern void (*D_801C700C[])(void); \
+    extern void func_80049CAC(s32 a0, s32 a1); \
+    void func_801878B8(void *a0) { \
+        D_801C700C[*(u16 *)(a0 + 2)](); \
+        if (*(u16 *)a0 != 0) { \
+            if ((*(s16 *)(a0 + 0x70)) == 0 || (*(s16 *)(a0 + 0x70)) == 7) { \
+                func_80049CAC(*(s32 *)(a0 + 0x20) + 0x10, *(s32 *)(a0 + 0x20) + 0x34); \
+            } \
+            if ((*(s16 *)(a0 + 0x70)) == 0xF) { \
+                func_80049CAC(*(s32 *)(a0 + 0x20) + 0x10, *(s32 *)(a0 + 0x20) + 0x34); \
+            } \
+            func_8012B260((u8 *)a0); \
+        } \
+    }
+
 #endif