Somewhere other than where it was intended to. The alternate pipe glitch occurs when a pipe takes you to To do a walljump from entering the underground section of a level, hold Left for 6-7 frames, release for one frame, then press Left and hold it until you can jump. It's possible to perform walljump from any non-lethal solid material (bricks, pipes, etc.)
![super mario bros 3 walk through super mario bros 3 walk through](https://i.ytimg.com/vi/IHZX7lgMsjE/hqdefault.jpg)
The game ejects Mario towards the opposite of his steering. Wall-ejection is SMB's mechanism to push Mario out of a wall when he entered it partially. Walljump happens because the game does a floor check (a simple "is there a solid block below him?" test) even during a wall-ejection. In the right image (using a custom map), three walljumps are performed. The walljump in the left image is easy to try even on the real console. The wall and allows you to jump again, boosting from the wall. Walljump is when you jump towards a wall and somehow Mario's foot catches
![super mario bros 3 walk through super mario bros 3 walk through](https://64.media.tumblr.com/0054368cec6c55309cfd782938b733bc/tumblr_oj04t2RTop1rrftcdo1_500.jpg)
![super mario bros 3 walk through super mario bros 3 walk through](https://i.ytimg.com/vi/qK_8M050VyY/maxresdefault.jpg)
Methods of moving to the right side of the screen.