Pull the right trigger to attack with your equipped weapon. Each weapon has its own reach, attack speed, and downtime after each attack. Weapons are split into melee and ranged types, with ranged weapons requiring ammo to use.
Crafting weapons will require certain materials. You can find these materials by beating up enemies or buying them from shops.
When holding the left bumper to activate Undead Shield, press the A button to use Bug Crush. This will swing the zombie scale heavily toward the human side, but unleashes a devastating attack that hits a wide area.
SPECIAL MOVES
There are more special moves to learn besides Bug Crush, each with their own unique effects in battle.