diff --git a/compare.sh b/compare.sh
new file mode 100755
index 000000000..27f8a4cab
--- /dev/null
+++ b/compare.sh
@@ -0,0 +1,11 @@
+#!/bin/bash
+# Compares baserom.gbc and pokecrystal.gbc
+
+# create baserom.txt if necessary
+if [ ! -f baserom.txt ]; then
+    hexdump -C baserom.gbc >> baserom.txt
+fi
+
+hexdump -C pokecrystal.gbc >> pokecrystal.txt
+
+diff baserom.txt pokecrystal.txt | less