diff --git a/Retron-77.md b/Retron-77.md
index 69df6a6..3df6f1c 100644
--- a/Retron-77.md
+++ b/Retron-77.md
@@ -83,4 +83,6 @@ The boot process builds the root filesystem of the device as an initramfs into t
  2. If a cartridge is inserted, try to dump the image
  3. If no cartridge is inserted on startup or a cartridge is removed, kill the running Stella / UI process and start the UI
  4. If the dump was successful, kill the running UI / Stella process and launch Stella for the dumped image
- 5. If the dump was unsuccessful, kill the running Stella / UI process and start the UI
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+ 5. If the dump was unsuccessful, kill the running Stella / UI process and start the UI
+
+The UI is a simple menu that launches Stella as soon as a ROM image is selected.
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