I've tried to make this on Visual RM for over a year with very little luck. I'm sure it could be done outside of Visual RM but Zalcano is tough because of how quickly the bot needs to respond to many different facets of the boss. The rockfalls, tiles that can't be stood on, the fireball zalcano throws. All need to have extremely quick response times that don't have a set pattern the way something like Zulrah does. If anyone could manage to make one I'd be extremely willing to pay for it as well, but I think it'd be a difficult challenge to make.