Designing arcade machines for high player turnover requires a blend of engaging gameplay, intuitive mechanics, and strategic placement. Here are the most effective methods:

1. Short, Addictive Gameplay Loops: Arcade games should offer quick, rewarding sessions to encourage repeat plays. Games like Pac-Man or Street Fighter thrive on easy-to-learn but hard-to-master mechanics.

2. Eye-Catching Aesthetics: Bright colors, dynamic lighting, and bold artwork attract players instantly. The cabinet design should stand out in crowded arcades.

3. Strategic Difficulty Balancing: Games should be challenging enough to require multiple attempts but not so hard that players quit. Progressive difficulty keeps players hooked.

4. Multiplayer and Competitive Features: Leaderboards, head-to-head modes, and cooperative play increase replay value and social engagement.

5. Optimal Pricing and Reward Systems: Fair pricing per play and bonus rewards (e.g., extra lives for high scores) incentivize continued spending.

By focusing on these elements, arcade machines can maximize player turnover and profitability.