

The vine is not pivotal to this glitch.In 4-2 of SMB1, after doing the vine teleporting glitch, you can enter the next pipe and it will lead you to where the vine would have led.If the screen is behind Mario (Mario is on the right side of screen), you can enter the previous Entry's target.Thus, the screen scrolling position determines where the current Entry leads. Once the screen scrolls far enough for the next target label to be loaded from the level data, all Entries in the current screen will lead to that place. In the same screen there cannot be Entries to different places. The reason lies in how the game is designed: There is just one global variable in the game RAM that determines where pipes or vines in the current screen lead. Theory: Technically ? the game can have only one Entry per a screenful.

Let's define a word Entry which can be a pipe or a vine. The alternate pipe glitch is when a pipe takes you to somewhere other than where it was intended to. If you misestimated the amount, you'll get stuck in the left edge of the screen. Go back to the left and touch the vine, and if you went the correct amount to the right, you'll be teleported to the extreme right edge of the screen. Walk to the right so that about half of the vine block gets scrolled off the screen, and the vine will dissappear. Uses: In 4-2 of SMB1, hit the vine block and get up on the ceiling. If you touch a vine at the extreme left edge of the screen, you'll be transported to the right edge. In SMB3, the trick works exactly the same way as in SMB1, but is harder to perform, because the game is more effective in preventing inside-wall situations. It's possible to perform walljump from any non-lethal solid material (bricks, pipes, etc).

The walljump in the left image is easy to try even on the real console. Walljump is when you jump towards a wall and somehow Mario's foot catches the wall and allows to jump again, boosting from the wall. The SNES ports of these games contain almost the same physics as their NES/FDS counterparts, so you can use most of them in SNES Super Mario All Stars as well.
