INSTRUCTIONS: Z Key for Editor Hold Space while editing to tile trace (this means you don't have to select everything by hand.) Arrow Keys/WASD to move. If you would like, while in the editor, press the 'p' key to turn on collision points. This means you can add collisions to the tiles. Press the 'e' key while in the editor to trace the tile right beneath your mouse cursor. While in the editor, you might notice a number variable in the top left hand corner. This is the layer number. Press the number keys to change it from 1-3. Layers 1 and 2 draw on top of each other. Layer 3 does the same thing, but placing a tile on layer three also allows you to walk behind said tile. To scroll in the Editor, hover your cursor over the Editor UI and use the arrow keys.
Thanks @griffpatch_tutor for all the assets, couldn't have done it without those.