Color Doors

The color doors are a great way to create your own Metroidvania-style game. There are 4 colored doors. Along with 4 colored keys too: NOTE: THE DOORS AREN'T ACTUALLY THAT COLOR. THEY JUST HAVE THE KEY COLOR ON IT.
 * Blue Key to Blue Door
 * Green key to green door
 * Yellow key to yellow door
 * Purple key to purple door