Controls test stage
The controls test stage or customization test stage is a basic stage in Super Smash Bros. Brawl, Super Smash Bros. 4, and Super Smash Bros. Ultimate. that allows players to test their set custom controls character customizations. As such, it cannot be selected in Versus mode. In the controls test version, only Mario is playable. In the customization test version, the player can test any fighter they are customizing.
The stage consists of a single flat strip of terrain with a simple texture. On either side of the stage is an invisible wall that prevents the player from reaching the blast lines. These walls can be wall jumped from and wall clinged on, but do not interact with projectiles. In Brawl, it is not possible for the player to be KO'd on the test stage under normal circumstances, as the only character available, Mario, cannot clear the walls and lacks any self-damaging attacks to launch himself with. In Smash 4, an invisible ceiling just above the camera boundary ensures that no fighter is able to reach any blast line.
On the controls test stage, pressing buttons will cause a small notice to appear on screen, containing an icon for button and its currently assigned function. In Super Smash Bros. for Nintendo 3DS, controls can be customized using the bottom screen while the player is in the test stage. In Brawl and Super Smash Bros. for Wii U, controls are set on a separate screen. In Ultimate, a Sandbag was added to the stage.
On the customization test stage, a Sandbag is present for the player to test out their attacks on, and its damage is displayed on screen. The Sandbag's damage percentage will reset to zero if it does not sustain any damage for a few seconds. Due to the invisible walls, the Sandbag cannot be knocked out of bounds as on the Online Practice Stage. Because of its status as an item, the sandbag is unaffected by grabs, while other conditional moves such as counterattacks can't be tested. In addition, the sandbag may have different knockback mechanics from some attacks in comparison to a regular fighter being hit by them, so comboing may be inhibited at times. In Ultimate, the player's damage percentage is displayed at the bottom if a Spirit team is being tested.