Fun game! I managed to make it to wave 6 of 8. Though I wasn't quite sure how the upgrades were supposed to work. Maybe I was just unlucky but seemed like most of them just jammed my weapons.
Thanks for playing, each of the upgrades does one positive thing based on the icon and one negative thing chosen at random, so something else will have happened as well as the weapons being jammed, like activating your shield or freezing the enemies for a few seconds
