Arcade games have long been a target for memory editing hacks, where players manipulate game data to gain unfair advantages. To combat this, developers implement various anti-memory editing protections. Here are the most common types:

1. Checksum Verification: The game periodically checks the integrity of critical memory regions by comparing checksums. If discrepancies are found, the game may crash or reset.

2. Memory Encryption: Sensitive data, such as scores or lives, is encrypted in memory, making it harder for hackers to decipher and modify.

3. Redundant Data Storage: Important values are stored in multiple memory locations, and the game cross-checks them for consistency.

4. Anti-Debugging Techniques: The game detects debugging tools and terminates or alters behavior to prevent reverse engineering.

5. Randomized Memory Addresses: Key variables are dynamically allocated to unpredictable memory locations, making them harder to locate.

These protections help maintain fair play and preserve the challenge of arcade games, ensuring a level playing field for all players.