I definitely intended for it to run on the 512k (and possibly the 128k)! All that is needed is the equivalent of the CopyMask function, which didn't appear until the Plus. I'm guessing Strandberg had some assembly language code for this movement animation, or maybe he didn't do any offscreen/buffered animation. As I remembered, his animation was smooth and flicker free, so I'm guessing the former. Or maybe he used CopyBits with a maskRgn. Anyway, after I had gotten everything done using CopyMask and found it didn't work on the 128/512k, I didn't want to spend time redoing it.

And the original plan was to have Daleks OS X ready for release with the Mac App Store, but obviously I am a little late on that one :lol: