Plain Zombie Base requires coins for weapon upgrades and the physics can be wonky affecting aiming. i have to collect coins even if it is boring and timing shots is crucial.
Step aiming and charging shots is the main control, and collecting coins is needed.
The controls are clicking and dragging to aim and holding to charge shots. The features include collecting coins and upgrading weapons.
Attacking from the sides is Most useful to hit multiple targets when zombies bunch up. Save coins to upgrade weapons when possible.
Q: What are the controls? A: Click and drag to aim, hold to charge.
Q: What is the objective? A: Collect coins and upgrade weapons.
Q: What features are stated? A: Upgrading weapons and collecting coins.
Q: What is the main mechanic? A: Aiming and charging shots.