Designing an arcade machine's attract mode visual effects is crucial for capturing player attention and encouraging gameplay. Key factors include vibrant colors and flashing lights to create immediate visual appeal. Dynamic animations and looping sequences keep the display engaging without becoming repetitive. Incorporating game characters or iconic elements from the game helps build recognition and nostalgia. Contrast and brightness adjustments ensure visibility in various lighting conditions, especially in dimly lit arcades. Finally, a balanced rhythm between fast-paced and slower moments prevents visual overload while maintaining excitement. These elements combine to create an irresistible lure for potential players.