Deceptive puzzling from v.dog. An excellent delve into mapmaking.
Map created by Caligula Superfly. Mirrored here for archival purposes.
Extract all the files to your \Narbacular Drop\ folder.
For those that have their own startup.cfg already, just add
bind c+ 0 trigger commentary
to it, rather than overwriting their own.
You can play the level without my commentary,(and that's by far the best thing to do on the first run).
When you want to use it you'll need to remame menu_mouse2.bmp to menu_mouse.bmp
As you play the level, just run up to the green crystals and push 'c'.
To switch it off, simply rename menu_mouse.bmp to something else.