lynchie137 wrote:One myth or rumor I remember hearing about as a kid was there being a secret World Circuit in Mike Tyson's Punch Out that was supposed to be way harder than the World Circuit. There were even codes for this circuit that were printed out in a few of the strategy guides that were making the rounds back in the day. Unfortunately, none of them worked when I tried to enter them.
You mean Another World Circuit?
https://punchout.fandom.com/wiki/Another_World_Circuit