Hey hey! You're not allowed in the castle, son!
Go home and get some sleep!
GIF
I don't think these Links will listen, though.
In this infection map survivors take on the role of Dark Nuts defending the castle from from the infected Links.
You can use the well on the right of the castle as a shortcut to the courtyard, similar to the original game.
You can also go underneath the bridge or make a risky jump to hold out on the far right river pegs.
A Void's Tear on the second floor represents Agahnim's dark magic.
Some power weapons are on the far side of the bridge, but as they say, it's dangerous to go alone.
And for those who wanted to see a title screen, fret not--
I feel the same way. This won't be the last A Link to the Past map.
Happy Halloween!