Using Cheat Engine is generally safe, but Harvest Moon is prone to "Event Flags" breaking.

Here is a comprehensive guide to using Cheat Engine to master Mineral Town. How to Set Up Cheat Engine

💡 If you want to find the "Hidden" values like the number of Power Berries you’ve eaten, search for "Unknown Initial Value" and use "Increased Value" every time you find and eat one. If you'd like, I can help you: Find the Specific Item IDs for rare crops Troubleshoot Emulator-specific connection issues Explain how to find Hidden internal timers for crop growth