Ectoplasm

 is a layout element and Ghostbusters element in The Sandbox Evolution.

Summary
The famous green slime.

Uses

 * As it is a liquid, the player can swim in it.
 * Because it is a heavy liquid, it sinks below lighter elements such as mud and water, raising them higher. This can be used to cleverly create game worlds where the player has to change the environment to win.
 * It can be used to trigger the Liquid Sensor.

How to craft
Allow a Unicorn to walk on the Binding Wall element.

Cost to unlock
1,500 Mana.