I always and always will be confused about why they dont do this, if you do the minus world glitch and go into the middle pipe it acts like its the final warp in the game (or second final warp im not that familiar with super mario bros) and I don't see anything about it in the rules, so I would like to know why they don't.

It goes to World 5.

If you.go to right pipe the 'warp zone' text always faster than you If you go to middle pipe cant warp to minus world If you trying sometimes you will know

going to world 4 requires many less levels to be beaten

warp to w4: 1-1, 1-2, 4-1, 4-2, 8-1, 8-2, 8-3, 8-4 warp to w5: 1-1, 1-2, 5-1, 5-2, 5-3, 5-4, 6-1, 6-2, 6-3, 6-4, 7-1, 7-2, 7-3, 7-4, 8-1, 8-2, 8-3, 8-4

thats basicaly the 1 warp route lol, and is actualy used there