Hi all, i´m starting to run this for fun, and i noticed that when i reach the pipe that take me into the warp zone for the 8 world, there are coins instead the warp pipes, why?

It's because that is the intended destination of that pipe. What we do is cause a "Wrong Warp" by having Mario be far enough to the right of the screen to trick the game into thinking we actually took the vine. I would recommend watching darbians tutorial on Any% for further explanation.

They are using a complicated glitch. To get to the warp zone, hit your head against the invisible blocks below the platform before the pipes. Hit the vine, and climb up. To find out more, type in "wrong warp glitch Super Mario Bros" or something on the internet.

Thanks for response, i´ll see the darbians tutorial.

Sure thing dude