Action-base defense game where you need to survive thousands of a very particular kind of zombies: pothead
This second game includes 42 unique weapons, 15 different enemies with very distinct behavior on 15 game waves and 3 bosses.
You need to use left click to shoot. There is a coop shooter to assist you, that can learn how to use weapons better during the game.
You can buy weapons and place then on your weapon slots to change then real time.
Some weapons are better suited for an ocasion than others