Graphics are the main attraction. The game uses tapping to control defenses and the goal is to survive virus waves.
Clicking is how you play this game, you tap to launch immune defenses against continuous virus waves.
The controls are straightforward, the main action is tapping the screen to launch defenses. No extra buttons or toggles are stated.
Quick is the best way to describe the needed timing. You must focus on perfect timing to survive the endless waves.
Q: What is the main control method? A: You tap the screen to launch attacks.
Q: What is the objective? A: Survive virus waves longer.
Q: Is there a timer or hints? A: Not stated.
Q: What is the main mechanic? A: Tapping to control defenses.