Is there an external tool to remove a GameObject from a scene?

I have a UI Image gameobject that has 9 slices made through Unity Editor.

I was playing around with “tiled” “filled” settings, but somehow it tried to create a mesh more than 65000 verticies (the scene has NOTHING but UI elements) and now Unity editor takes more than 8GB of memory, and there’s no way to do anything in that scene because it just simply freezes.

Whenever we open the scene the editor becomes unresponsive (the Windows application of the editor does not crash or goes grayed out for being unresponsive though).

That scene has a hundred hours of work and we cannot do anything at the moment.
The problematic GameObject is not much so we would like to at least just remove that from that scene somehow without Editor freezing.

Is there any way to just remove an object in the scene right now?

Using Unity 5.2.2, just updated to see if it could fix the issue (it didn’t).

Assuming you’re serializing your assets to text (I believe thats the default now), You could open the scene in a text editor, and if you can find the game object, you could delete it.

Unfortunately, I tried with notepad++, but it wasn’t serialized in texts.
Any other way?

There is a binary2text.exe in the folder Unity5\Editor\Data\Tools that supposedly can convert a binary asset to text format (that what unity is internally using).
Make a copy of your file and try to run it via command line.