emeraldaly. The flag pole glitch in 8-1 is probably the hardest glitch in the whole game. It is humanly possible, but the chances are way too low for a speedrunner to use in game. There might be a setup for it that might make it speed run possible.

Someone did flag pole glitch in 8-1 and saved a frame rule. If it is possible to do happy Lee's faster 4-2 and do the flag pole glitch, it might be humanly possible to beat mario bros in 454 seconds. Can anyone try to pull off Happy Lee's faster 4-2, if it is possible, then we might be able to shave off another second off the mario bros record.