Always launch the game first and load into the Beta 3 main menu or gameplay. Once the game is running, alt-tab out and launch the trainer as an administrator.

Become tiny to fit through small cracks in walls, gaps in flooring, or under doors.

If you want to look deeper into modding pre-release builds, let me know:

If you want to bypass the AI's punishing learning curve, explore the map without limits, or test the limits of the game engine, a is your ultimate tool. This comprehensive guide covers how trainers work, the best features available, and how to safely modify your gameplay. What is a Hello Neighbor Beta 3 Trainer?

Prevents you from being caught or knocked out, bypassing the game-over screen entirely.

For more advanced control, such as teleportation or changing item sizes, players often use specialized trainers:

The standard procedure is to launch the game first, load into the main house map, and then Alt-Tab out to launch the trainer. Listen for an audio cue (usually a beep or a voice notification) confirming the trainer has successfully synced with the game. Why Explore Beta 3 Today?