Go Circle Scale Shooter

In the middle of the screen, there will be a circle that rotates evenly and moves around the screen, on that circle there will be 1 weak point (weak spots have a more prominent color than the rest, art appoints a normal circle with 1 area). weakness for dev to adjust size according to level) The player's task is to control the character (character holding a bow or holding a gun, top-down view) to avoid colliding with the circle and shooting at that weak point. The character's angle will always point to the center of the circle, control the character with the joystick and fire button. Each time you hit a weak point, you will be awarded points and the size of the circle will get bigger (the circle will stop and have the effect of expanding), then move on.
Winning condition: Compare score with high score
Loss condition: Collision with the circle
The game has 2 modes:
Normal: The circle gets bigger every time it hits a weak point
Difficulty: The circle will grow bigger every time it hits a weak point, On the circle will appear points (eg gun turrets) that shoot bullets in the direction of the point. The player who collides with the bullet will lose