Classic Mode (Super Smash Bros. Ultimate)

Classic Mode (勝ちあがり乱闘 Survival Smash) is a single-player mode in Super Smash Bros. Ultimate. Each character now has their own predetermined set of opponents and stages to face in this mode. A unique name is given to each character's path, and there may be special rules or conditions: for example, Ryu's path references Street Fighter II by using only Ω forms and Stamina mode alongside the fighters most closely representing the characters of Street Fighter II. It is different from the Classic Mode versions found in the two versions of SSB4, shown by the return to the style of Classic Mode that was in Melee and Brawl. Just like in Super Smash Bros. for Wii U, Classic Mode can also be challenged by two players.

Similar to the Classic Modes for the previous entries, players can select an intensity level, indicated by the position of the lengthy mural. The highest allowed starting intensity is 5.0, and it will increase slightly after each victory, with a maximum of 10.0. The layout consists of six stages, a bonus stage, and a boss. Unlike previous entries, the boss in the last stage is not always Master Hand; each fighter has a different boss encounter at the end. Scores are also present in Classic Mode, which is displayed alongside the player's Global Smash Power.

Regular stage
The first six stages of each route are regular Smash battles where all enemy fighters must be defeated to proceed. Some variations include Giant Battles, where at least one opponent is giant, and Horde Battles, where at least eight enemies are fought three at a time.

Bonus Game
This is a challenge in the style of Race to the Finish, but rather than having a time limit, the player must outrun a void of darkness that consumes the stage behind them. Glowing orbs are scattered throughout the side-scrolling area which increase the player's score, some behind breakable blocks and bomb blocks that encourage the player to go out of their way as the void closes in. Some scattered physics objects impede progress in a similar manner to Trophy Rush. At the end of the stage, a cannon blasts the player into a portal that ends the Bonus Game.

Boss
Each fighter faces a predetermined boss fight at the end of their route. The player must deplete the boss's HP in order to defeat them. In some cases, the boss is not the only challenge in the final stage; for example, Mario's final stage features a regular battle on Final Destination against Bowser, who transforms into Giga Bowser and begins the boss fight upon his defeat.