David wrote: ↑December 18th, 2022, 2:47 pmMaybe those objects used to be where the unusual modifiers are.
Then they removed the object from the old place without removing the modifier, and added it to the tile on the left.
This is just my guess.
Right. That is almost certainly it, seeing how each floor tile with an unexpected modifier has an object to its left with the same modifier value.
David wrote: ↑December 18th, 2022, 2:47 pmThis one is in a wall.
Perhaps there used to be an open gate there, then they removed it without removing the modifier.
The gate would have led to the room on the right, which was removed as well.
(Or rather, moved elsewhere, since this level uses all 24 rooms.)
Again, this is just my guess.
Could be; modifier 0xFF is generally only used for (open) gates. It's unlikely it was a raise/drop/teleport.