Ah that was it, the 23 was borking me over hahaha
I was doing the bank switch with bank 05 when you edited the message.
I have now implemented it, and it seems to be working.
If you bump into it while walking with Link, you stop where it should.
There's only one bug I noticed, and I found it by mistake actually.
It seems the tile collision with the cracked walls is not checked when you are hit by an enemy.
For example, try the cracked wall right above the starting point, where Octoroks spawn.
Let one hit you while you stand right in front of it, and once one does, you'll see Link go pass the collision and hit the end of the cracked tile like it would if it didn't have collision.
You can get out of it easily by just walking out, and if you try going back in, the collision will hit again.
It seems to only happen when an enemy hits you.
Tbh, it's such a small bug, that I'm quite okay with it, since it doesn't feel as important, it's just niche haha
Thank you so much, stratoform, I never expected that just out of the blue someone would jump in and help with almost all of the remaining bugs and things to do for the project
You just took out the great majority of them, now there's only a handful of things remaining!
Thanks again for all the work
I will upstream all this to the Github page, and make the appropriate changes in files to give you credit.
I will also edit the OP accordingly.