Interdimensional Internet was an incredibly fun challenge to do. It has several layers and a few clever gotcha-ya’s that require you to slow down and really understand what was going on behind the scenes. My advice for this challenge for those still completing it is to slow down, really enumerate what you have available to you, review it in great detail. If you can do that then you should have no problem understanding the task at hand and the path forward.
Interdimensional Internet Writeup
(password is the flag)