diff --git a/demo.sh b/demo.sh
new file mode 100755
index 0000000..161414a
--- /dev/null
+++ b/demo.sh
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+for height in $(seq $(( $(tput lines) - 2 ))); do clear; rush03 $(( height * 2 )) ${height}; sleep .02; done