If you are using a different core script (or none at all), you can try this native MV method, though it is less stable:
By following these resources and tips, you can create a map zooming system that elevates your game and provides players with a more engaging and immersive experience. zoom in on map rpg maker mv
If you already use Yanfly’s Core Engine (which 90% of MV developers do), you have access to a hidden zoom function that many overlook. Yanfly’s Core Engine modifies the underlying Screen object. If you are using a different core script
Plugins offer more stability, easier "permanent" zoom, and the ability to focus on specific events. easier "permanent" zoom
This is clunky and not real-time, proving why plugins are the superior choice for dynamic gameplay.