The crashing was probably caused by a greeter getting bad parameters. A very nice demonstration!
An update on the editor:
I've listed the hardcoded values for all MI paths. There are 12 MI paths, about 5 of which are old unused version. (Don't get too excited, they do not contain beta designs of the levels, they're just normal versions of the existing levels with missing screens. They can be used in later stages as additional levels though!
)
I've documented a lot objects; the Slig AI objects, the platform object, more about the LCD object, levers, and even some parts of the Slig object. I also discovered something rather disappointing about Sligs (Normal, legged Sligs at least) - It appears that all of them will eventually reset their positions and states if you get one or two screens away from them, which is quite annoying. I'm currently trying to figure more about this property of Sligs.