Very interesting, I don't know the differences, but I have to learn this whole world thoroughly, congratulations on your game. I already saw that you have to create 8 or 10 penguins as lives and space is lost with repeated graphics.
Jonathan Cauldwell is making great improvements in an effort to get it out on many 8-bit computers, I am a personal friend of Pete, who made the AGD port for Color computer and Dragon, I for my part will make an AGD emulator for a friend. I hope that all the games of any version can be ported and even improved, it can also be edited in a friend and download it to spectrum or others, already in window he has taken it, although I prefer a more friendly editor, like the one I am doing