ResistInvasion

ResistInvasion sends invaders from every edge toward a protected center zone. Tap each invader to clear it for points before it breaches the center. Any center entry counts as a mistake, and four mistakes end the run. Invaders spawn endlessly, and higher scores raise inbound speed and density. Clear the nearest threats first, cover open sides early, and keep taps short. Calm defense under rising invasion pressure decides how long this endless resist loop lasts.