Try to figure it out yourself, it's not hard.
With this you can build your own local version of the Stage server. The data for the Stage server as well as others auxiliary servers are in the folder ServerData. Added support for the new BackgroundObject class and the many derived classes (BlackGroundUnderWater, BackgroundLava, etc).Changed properties group to fit version 5.2.sprite formats (new formats are still TBD) Deprecated EnemyGenerator in favor of ObjectGenerator.Quick property change on object double click.This repository contains the complete source code for MarioV3 version 3.4.0.0 (Super Fanmade Mario Bros), with many changes made with the goal of feature parity with MarioV3 version 5.