I've written this special version of the Earth Shaker editor for use within 
Spectrum emulators. I've removed the need for tapes (to load and save game data). 
Saving of edited levels is done by saving a SNA file of the program. 

I've fitted both the editor and game within a single 128k snapshot file.
The snapshot file should only be used in 128k mode 
(i.e. not supported on 128k+2, 128k+2A, 128k+3)

I've also updated the editor and tweeked the graphics.

Enjoy,

Sai Ming Wong