Plain game offers a chaotic grind with an addictive feel. I found the core mechanic is surviving waves of zombies.
Clicking and moving around the screen is the basic way to play, you must survive waves of zombies.
Buttons are unresponsive and the physics feel wonky. Shooting and upgrading weapons are the main features.
Focus on surviving waves of zombies as the core mechanic. Most players find the repetitive waves are a feature.
Q: What are the controls? A: Buttons are unresponsive and physics feel wonky.
Q: What is the objective? A: Survive waves of zombies that keep coming.
Q: What is a stated feature? A: Shooting and upgrading weapons are main features.
Q: What is the main mechanic? A: Surviving waves of zombies is the core mechanic.