It's pretty simple. Just click on a tool to select it, and click anywhere on the screen to place a block. The lava kills you, the note block bounces you higher, and the flag makes you win. Press Q to erase blocks. Click and hold the rocket to clear your level. Toggle the grid with the grid button. Press M to change the game theme. Press Play Level to test your custom level, and have fun! WARNING: eraser is still buggy and goombas are out of comission for a while
