diff --git a/assets/asm/yaze.asm b/assets/asm/yaze.asm
new file mode 100644
index 00000000..c41e4f73
--- /dev/null
+++ b/assets/asm/yaze.asm
@@ -0,0 +1,15 @@
+; =========================================================
+; yaze custom assembly code 
+; =========================================================
+
+namespace yaze
+{
+
+!YAZE_CUSTOM_MOSAIC = 1
+
+if !YAZE_CUSTOM_MOSAIC != 0
+  incsrc "mosaic_change.asm"
+endif
+
+}
+namespace off
\ No newline at end of file