How to Upgrade to your Lightsaber to a Double-bladed Lightsaber
If you go to Dathomir early on, you can find an upgrade to your lightsaber that transforms into a double-bladed lightsaber–like the one that Darth Maul uses in The Phantom Menace–which is designed to help you deal with large crowds of enemies. Most of the planet will still be locked off to you until you obtain certain Force abilities, but you can at least travel far enough to find the upgrade. This upgrade can be found in one of two other places: about an hour later on Bogano or several hours later on Kashyyyk. If you want it as soon as possible, go to Dathomir.