Plain survival and reflexes are the core mechanics. i found the reload timer mechanic to be a constant pressure thingy.
Clicking to shoot and moving your character is the main way to play, you have to handle the tricky physics.
The reload timer is a stated feature that keeps you on edge. The enemies come from all directions and the eye-catching graphics are a stated feature.
Most tip is to practice the timing for dodging. Focus on the reload timer to survive the chaos.
Q: What are the controls? A: Clicking to shoot and moving your character.
Q: What is the objective? A: Not stated.
Q: What is a stated feature? A: The reload timer and eye-catching graphics.
Q: What is the main mechanic? A: Survival and reflexes.