Other: Canonical Ending
- During the escape sequence you can help free your animal friends who taught you the shinespark and wall jump moves. Simply shoot out the right wall in the room where you got the Morph Ball Bombs.
- Doing this will change the ending graphics slightly at the time Zebes is shown exploding. This ending is said to be "canonical" because it leads into Metroid Fusion, in which the Etecoons and Dachoras are shown alive and well.