Arcade machines have long been a target for bots and cheaters looking to exploit gameplay for high scores or unfair advantages. To combat this, manufacturers and developers implement various anti-bot mechanisms. Here are the most common types:

1. CAPTCHA Systems: Some arcade games incorporate CAPTCHA challenges, requiring players to solve simple puzzles or confirm they are human before continuing.

2. Time-Based Challenges: Games may limit input speed or introduce delays to detect unnatural patterns, as bots often perform actions faster than humans.

3. Input Validation: By monitoring button presses and joystick movements, arcade machines can identify repetitive or overly precise inputs typical of bots.

4. Score Limiting: Some systems cap the maximum achievable score within a time frame to prevent bot-driven score inflation.

5. Behavioral Analysis: Advanced systems track player behavior, flagging inconsistent actions like perfect timing over extended periods.

These mechanisms help maintain fair play and preserve the integrity of arcade gaming. As bots evolve, so do these defenses, ensuring a balanced experience for all players.