Thanks to @griffpatch for the tutorial.
★★★Instructions★★★ Controls: Cursor keys / WASD to move Level Editor Keys: 0 (zero) to toggle level editor or save a level 1, 2, 3, 4, 9 to switch tiles, E to pick tile under cursor R to Reset the level L to Switch Levels ★★★Credits★★★ Thanks to @griffpatch for the tutorial. In this tutorial you will learn... E1: Setup E2: Grid List E3: Tile Collisions E4: Platforming Scripts E5: The Level Editor E6: Level Codes E7: Drop-Through Platforms E8: Enemy Clones E9: Enemies in the Level Editor E10: Mystery Blocks E11: Death, Background and Sound E12: Auto Arranging Tiles E13: Level Progression and Editor Improvements E14: Sloping Tiles E15: Crouch and Slide E16: Piranha Plants E17: Koopa and Shells E18: Power Up Super Mario E19: Fire Mario E20: Star Power Up