Arcade machines are designed to withstand heavy use and prevent tampering, ensuring fair gameplay and protecting internal components. Here are the most common anti-tamper mechanisms found in arcade machine internals:

1. Tamper-Evident Seals – These adhesive labels break or leave marks when removed, alerting operators to unauthorized access.

2. Security Screws – Specialized screws (e.g., Torx, spanner, or one-way screws) require unique tools, deterring casual tampering.

3. Locking Mechanisms – Heavy-duty locks secure coin doors, back panels, and control boards, preventing easy entry.

4. Encrypted Firmware – Proprietary software with encryption prevents code modification or cheat exploitation.

5. Protected Circuit Boards – Some arcade PCBs are encased in epoxy or shielded to prevent physical tampering or chip swapping.

These measures help maintain arcade machine integrity, ensuring a fair and secure gaming experience for players and operators alike.