8-Player Smash (8人乱闘, 8-Person Fray) is a new gameplay mode introduced in Super Smash Bros. for Wii U. This allows to play with 8 players or CPUs at once on certain stages. This mode allows eight players to play on the same stage at one time. In addition to red, blue, yellow, and green indicators for players 1-4, players 5-8 receive new indicators colored orange, cyan, purple, and slate respectively.
Only the Time and Stock rule settings can be used in this mode and Hazards are turned off when playing more than 4 players. In Team Battles, you can fight with up to four teams, with the team colors being red, blue, green, and yellow. Some stages will not be available, depending on the number of characters in the match. The other modes are 5-Player, 6-Player and 7-Player Smash.
Stages available in 8-Player Smash
Only certain stages and their Ω Forms can be played on. Sizes of stages may change to accommodate for the larger amount of players. Several of the stages' hazards or background elements are also removed. Certain stages allow for 5 or 6 players, but not 7 or 8. Ω Form stages will be scaled up depending on how many players are present.
|Stage|| Max players|
| Max players|
|Mushroom Kingdom U||4||8|
|Mario Galaxy||8||8||Background ships are removed.|
|Mario Circuit (Brawl)||8||8||Shy Guys do not appear.|
|Luigi's Mansion||8||8||The pillars cannot be destroyed.|
|Peach's Castle (64)||8||8|
|Super Mario Maker||8||8|
|Kongo Jungle 64||8||8|
|Bridge of Eldin||8||8||King Bulblin does not appear.|
|Hyrule Castle (64)||8||8|
|Pyrosphere||8||8||Ridley and other hazards do not appear. The lava doesn't flow in the background.|
|Norfair||8||8||No lava-related hazards appear.|
|Woolly World||4||8||The terrain does not depress when players stand on it.|
|The Great Cave Offensive||8||8|
|Dream Land (64)||8||8|
|Orbital Gate Assault||4||8||Arwings do not appear in the background.|
|Lylat Cruise||8||8||The background is only set to starry space.|
|Kalos Pokémon League||4||8|
|Pokémon Stadium 2||8||8||The stage does not change its layout, and the jumbotron is blank.|
|Port Town Aero Dive||4||8||No F-Zero Racers appear.|
|Flat Zone X||6||8|
|Garden of Hope||4||8|
|Town and City||8||8||No background characters appear.|
|Smashville||8||8||No background characters appear.|
|Wii Fit Studio||8||8||The background does not change to a mirror.|
|Gaur Plain||8||8||Metal Face does not appear.|
|Duck Hunt||8||8||The dog and ducks do not appear.|
|Windy Hill Zone||8||8|
|Midgar||8||8||No Summon Materia appear.|
|Umbra Clock Tower||8||8|
The following stages are unavailable in 8-Player Smash in normal or Ω form. Custom Stages are also not selectable, with the option replaced with the option for switching to Ω Forms (prior to the 1.0.8 update).
- 8-Player Smash was planned to appear in Melee, however usage of the Debug menu can allow for partially implemented 6-player battles.