Version 1.4 is downloadable

[ryos]

Sure. Jump off the moving platform in 15923 onto the high platform with a ladder leading down. Climb down said ladder to 16123, and you're fenced in on every side by gray doors. Climb back up, and there's no way off the high platform. This is after loading a save from the pedestal in the Ghost Platform Maze room. I seem to remember passing through that room before and opening those doors, but they're closed to me now and it was oh so long ago.

I couldn't find a way out.