To use a weapon - just select the one you need and take your phone into your hand like a lightsaber. Then just swing, shake it.
if you increase the level - you will open a new weapon. To raise the level, just use the weapon

Here are available:
About 20 different lightsabers for the war of the Jedi and the Sith, with the ability to replace the power crystals for a color change:

Classic lightsaber - if you prefer classics - this is a good choice for you.

Double lightsaber staff - is unusually represented in this application, you can change the color of the left and right blades independently of each other.

Triple Kailo - saber is a legendary lightsaber with an original sound, you can activate the main and side blades separately.

As well as other weapons:
The ancient Sith sword
Laser pike, the staff of magna guard, the electro baton and many other melee weapons.

Have fun!