The one in 13 definitely is possible without super object throw. Don't know about 12, never really tried that.
You just need to practice and move your mouse really quickly. It's not really hard, but you don't really need to cube throw. In 00 it doesn't save a lot of time, same in 09, same 13 :/ so don't do it
in chamber 12 : Don't do it. I do it but it's really hard, you need a LOTS of practice. And it save only 3 sec.. you have to move your mouse really quickly.
As of today, 17/03/25, ghost door is officially banned in all runs, due to it not being possible without pre run setup (if a setup is found from game launch the rules will be updated accordingly). All previous full runs utilizing it will be grandfathered in, and all previous ILs utilizing it will be
