This specific version, often associated with early 2005 updates, introduced several refinements and additions to the core gameplay:

: Version 1.1 officially added the four bonus pets— Brinkley the Elephant , Nostradamus the Nose-fish, Stanley the Sea-serpent, and Walter the Penguin—which can be purchased using shells.

: New secrets and items were added to the "Unlockables" section, allowing players to track their progress toward 100% completion.