diff --git a/doc/radare2.md b/doc/radare2.md
new file mode 100644
index 0000000..ebe2180
--- /dev/null
+++ b/doc/radare2.md
@@ -0,0 +1,8 @@
+# How to use radare2 to explore a GB ROM
+
+First load the ROM in radare2
+
+> r2 <ROM>
+
+Enter Visual Mode by pressing 'V', cycle through visualization with 'p'.
+Then step over instructions with 's'.