You are a ghost.  You do not directly control anything.

Right click a living thing to learn its aura.

Left click to place auras.  (These are your signals, you see.)

You are trying to encourage a frog to move up as far as possible.  Extra points for catching flies.

Flies attract frogs.  Frogs attract gators and scare flies.  Gators scare frogs.

This is my submission to Godot Wild Jam 98.  As you can probably tell, it is very rushed, but I will be working on an update soon to clean it up!