diff --git a/include/libultraship/libultra/gbi.h b/include/libultraship/libultra/gbi.h
index 96b17a2..73a92f1 100644
--- a/include/libultraship/libultra/gbi.h
+++ b/include/libultraship/libultra/gbi.h
@@ -113,6 +113,7 @@
 #define G_TRI2 (G_IMMFIRST - 14)
 #define G_BRANCH_Z (G_IMMFIRST - 15)
 #define G_LOAD_UCODE (G_IMMFIRST - 16)
+#define G_QUAD (G_IMMFIRST - 10)
 #else
 #define G_RDPHALF_CONT (G_IMMFIRST - 13)
 #endif
diff --git a/src/graphic/Fast3D/f3dex.h b/src/graphic/Fast3D/f3dex.h
index 7f0aacf..3e54468 100644
--- a/src/graphic/Fast3D/f3dex.h
+++ b/src/graphic/Fast3D/f3dex.h
@@ -29,6 +29,7 @@ constexpr int8_t F3DEX_G_RDPHALF_CONT = OPCODE(G_IMMFIRST - 13);
 constexpr int8_t F3DEX_G_TRI2 = OPCODE(G_IMMFIRST - 14);
 constexpr int8_t F3DEX_G_BRANCH_Z = OPCODE(G_IMMFIRST - 15);
 constexpr int8_t F3DEX_G_LOAD_UCODE = OPCODE(G_IMMFIRST - 16);
+constexpr int8_t F3DEX_G_QUAD = OPCODE(G_IMMFIRST - 10);
 
 // S2DEX
 constexpr int8_t F3DEX_G_SPRITE2D_BASE = OPCODE(9);
@@ -149,4 +150,4 @@ constexpr int8_t F3DEX_G_OBJ_LOADTXTR = OPCODE(0xc1);
 constexpr int8_t F3DEX_G_OBJ_LDTX_SPRITE = OPCODE(0xc2);
 constexpr int8_t F3DEX_G_OBJ_LDTX_RECT = OPCODE(0xc3);
 constexpr int8_t F3DEX_G_OBJ_LDTX_RECT_R = OPCODE(0xc4);
-constexpr int8_t F3DEX_G_RDPHALF_0 = OPCODE(0xe4);
\ No newline at end of file
+constexpr int8_t F3DEX_G_RDPHALF_0 = OPCODE(0xe4);
diff --git a/src/graphic/Fast3D/gfx_pc.cpp b/src/graphic/Fast3D/gfx_pc.cpp
index 3057de4..05ff7e8 100644
--- a/src/graphic/Fast3D/gfx_pc.cpp
+++ b/src/graphic/Fast3D/gfx_pc.cpp
@@ -3134,7 +3134,11 @@ bool gfx_quad_handler_f3dex2(F3DGfx** cmd0) {
 }
 
 bool gfx_quad_handler_f3dex(F3DGfx** cmd0) {
-    // TODO implement this command...
+    F3DGfx* cmd = *cmd0;
+    gfx_sp_tri1(C0(16, 8) / 2, C0(8, 8) / 2, C0(0, 8) / 2, false);
+    gfx_sp_tri1(C0(8, 8) / 2, C0(0, 8) / 2, C0(24, 0) / 2, false);
+    gfx_sp_tri1(C1(0, 8) / 2, C1(24, 8) / 2, C1(16, 8) / 2, false);
+    gfx_sp_tri1(C1(24, 8) / 2, C1(16, 8) / 2, C1(8, 8) / 2, false);
     return false;
 }
 
@@ -3744,7 +3748,8 @@ const static std::unordered_map<int8_t, const std::pair<const char*, GfxOpcodeHa
     { F3DEX_G_TRI2, { "G_TRI2", gfx_tri2_handler_f3dex } },
     { F3DEX_G_SPNOOP, { "G_SPNOOP", gfx_spnoop_command_handler_f3dex2 } },
     { F3DEX_G_RDPHALF_1, { "G_RDPHALF_1", gfx_stubbed_command_handler } },
-    { OTR_G_MTX_OTR2, { "G_MTX_OTR2", gfx_mtx_otr_handler_custom_f3d } } // G_MTX_OTR2 (0x29) Is this the right code?
+    { OTR_G_MTX_OTR2, { "G_MTX_OTR2", gfx_mtx_otr_handler_custom_f3d } }, // G_MTX_OTR2 (0x29) Is this the right code?
+    { F3DEX_G_QUAD, { "G_QUAD", gfx_quad_handler_f3dex } }
 };
 
 const static std::unordered_map<int8_t, const std::pair<const char*, GfxOpcodeHandlerFunc>> f3dHandlers = {