CPUs

When there aren't enough players in Together Mode, CPUs are added. The difficulty levels of CPUs range from 1-9, with one being the weakest and nine being the strongest. Players can only choose a CPU's difficulty if they are hosting a Far Away Friends match or Local Play. Their difficulty is randomized in an Anyone Far Away match.

Like human players, CPUs play as Fighters and can also play as either Pit or Dark Pit in the Light vs. Dark mode.

Names
A lot of the names are taken from other Nintendo series. There is no known way to choose a CPU's name, and none of the names have a specific color to match.

The following is a list of names given to the CPUs:
 * Hard Work
 * Ridonk
 * Captain N (Captain N: The Game Master)
 * PGlove (Power Glove accessory for the NES)
 * Tater
 * Druck
 * Fawful (Mario)
 * Mario (Mario)
 * Ferris (The Legend of Zelda)
 * Link (The Legend of Zelda)
 * Resetti (Animal Crossing])
 * Moppina (Animal Crossing)
 * Anouki (The Legend of Zelda)
 * Monolith (This may be a reference to the first party developer, Monolith Soft.)
 * Pie Face
 * Apollo (Animal Crossing)
 * Hyrule (The Legend of Zelda)
 * Monoeye (Kid Icarus enemy)
 * Fort Oink (Kid Icarus: Uprising enemy)
 * Ganewmede (Kid Icarus enemy)
 * Crawler (Kid Icarus enemy)
 * Hewdraw (Kid Icarus enemy)
 * Medusa (Kid Icarus enemy)
 * Gherkin
 * Pit (Kid Icarus)
 * Ness (Mother/Earthbound)
 * nes4ever - NES
 * bots4ever
 * 1987 (Kid Icarus)
 * Samus (Metroid)
 * Floor Food (Kid Icarus: Uprising)
 * Gaol (Kid Icarus: Uprising)
 * Weak Sauce
 * Pittoo (Kid Icarus: Uprising)
 * Kirby (Kirby)
 * DeDeDe (Kirby)
 * (>_<)