diff --git a/src/mame/video/model1.cpp b/src/mame/video/model1.cpp
index 2c90eaceb25..51ff89e945b 100644
--- a/src/mame/video/model1.cpp
+++ b/src/mame/video/model1.cpp
@@ -1303,12 +1303,13 @@ void model1_state::tgp_render(bitmap_rgb32 &bitmap, const rectangle &cliprect)
         for (;;) {
             int type = (list[1] << 16) | list[0];
             m_glist = list;
-            switch (type & 15)
+            switch (type)
             {
                 case 0:
                     list += 2;
                     break;
                 case 1:
+				case 0x41:
                     // 1 = plane 1
                     // 2 = ??  draw object (413d3, 17c4c, e)
                     // 3 = plane 2
@@ -1463,6 +1464,7 @@ void model1_state::tgp_scan()
                     list += 2;
                     break;
                 case 1:
+				case 0x41:
                     list += 8;
                     break;
                 case 2: