New Weapon Upgrades
You can now upgrade the weapon damage and/or frequency when leveling up. For the Laser Hula-Hoop increasing the frequency means that it rotates faster.
Here is a fun GIF when I tested the frequency and set the multiplier to x10 (ingame it's 2x max):
Added Damage Numbers
You can now see how much damage you actually do.
[url= https://i.imgur.com/I0EDCvW.gif][/url]
And you can enable/disable the damage numbers in the options menu: