Multiplayer which also has boosted performance, the black bug fix, in-editor scrolling, and hotkeys.
Menu maps are menu1.s2, menu2.s2, menu3.s2, and menu4.s2. If you are using the vanilla stranded II version, you should copy the menu map four times for it to work, and rename it to the names stated, or alternatively modify menu.bb so that it only includes menu.s2