The original floppy disk from Mainframe has a custom disk format. The game itself, without the title picture and the text stuff, is an one-filer. To Making an Easyflash or a sd2iec compatible version out of this is very easy.
By the way: I had just examined the crack fom Illusion. The super lamers has cracked the game with a freezer cartridge. Either they were just lazy or they didn't manage to crack the game properly.
Sounds like an easy one then. Would have thought it's tougher than that. So not really worth going for EF in that case I assume. Have been looking around for the original manual to the game BTW, but it seems to be lost...