Stage Builder

Stage Builder is a mode where players can create their own custom stages. It first appears in Super Smash Bros. Brawl, and has also appeared in Super Smash Bros. for Wii U and Super Smash Bros. Ultimate (since version 3.0.0).

Super Smash Bros. Brawl
When making the stage, players first pick the size of the stage, and then creating a background pattern, as well as the music from the game that will play on the stage. Once done, the player can start adding pieces to the stage, whether it be simple platforms to ladders to spikes. However, each of the four control types have different ways to move the pieces, however, they are all able to flip, resize, zoom, swap palettes and erase pieces of the stage.

After building a fraction of the stage, it can be tested out before being saved. This can be done several times, if it is necessary. After the stage is finished, the name and comment can be chosen, as well as an option to change the music of the stage.

Players could send their stages to other players via Nintendo Wi-Fi Connection, prior to the service's closure on May 20, 2014. At one point, it could have been sent directly to Nintendo using the "Submit" option on the Stage Builder screen. Every day, Nintendo would send a selected stage to every player with Wi-Fi and Super Smash Bros. Brawl, so they could try out the stages that other people have made. The stage was removed after a day had passed, and a new one was brought in the next day. This allowed players to make and try out new stages for themselves every day.