Finally had a spare few hours to get my Amiga out today and install/play it. Had to use real floppies as couldn't figure out how to downgrade my RawDIC version. But seems to have installed flawlessly from floppy.
It's a great game, took me a while to figure out all the moves etc but once you get in to it it's really good. It's pretty hard, died on the first level the first time, then gave up on the first level as I couldn't figure out how to exit the level (it's not entirely obvious that you need to press up AND fire to go through the exit door) and then finally died on the third level, couldn't find the last putty. Will definitely be going back for more though!
Big thanks to all involved.