Hard to remember, especially the requirements
There was a good demo by a group
called "Hardwired", they did a demo for plain A1200 without any expansion, but I cannot remember the name,completely gone, and itīs confusing that there is a demo
called "Hardwired" by a different group.
With memory expansion I think Nexus 7 would be the best demo for 020/AGA, but I wouldnīt be surprised if I was mistaking with the requirements and itīs maybe for 68030.
And Mellow Chips Divine comes into mind.