Super Smash Bros. 6/Masterpieces

Here is the list of Masterpieces in Super Smash Bros. 5.

Masterpieces
Bold=Unlockable

NES

 * Super Mario Bros.
 * Super Mario Bros. 2
 * Super Mario Bros. 3
 * Super Mario Bros.: The Lost Levels
 * Donkey Kong
 * Donkey Kong Jr.
 * Donkey Kong 3
 * The Legend of Zelda
 * Zelda II: The Adventure of Link
 * Metroid
 * Yoshi
 * Kirby's Adventure
 * Earthbound Beginnings
 * Ice Climber
 * Kid Icarus
 * Punch Out!! featuring Mr. Dream
 * Excitebike
 * Balloon Fight
 * Urban Champion
 * Mach Rider
 * Clu Clu Land
 * Pro Wrestling
 * StarTropics
 * Zoda's Revenge: StarTropics II
 * Pac-Man
 * Ms. Pac-Man
 * Dig Dug II
 * Mega Man
 * Mega Man II
 * Mega Man III
 * Ghosts 'n Goblins
 * Bomberman
 * Metal Gear
 * Castlevania
 * Castlevania II: Simon's Quest
 * Castlevania III
 * Contra
 * Super Contra
 * Adventure Island
 * Final Fantasy
 * Dragon Quest
 * Athena
 * Bubble Bobble
 * Blaster Master
 * The Guardian Legend
 * Ninja Gaiden
 * Kung Fu Master
 * Lemmings
 * Tetris
 * Rampage

SNES

 * Super Mario World
 * Super Mario Kart
 * Super Mario RPG
 * Donkey Kong Country
 * Donkey Kong Country 2: Diddy Kong's Quest
 * Donkey Kong Country 3: Dixie Kong's Double Trouble!
 * The Legend of Zelda: A Link to the Past
 * Super Metroid
 * Super Mario World 2: Yoshi's Island
 * Kirby Super Star
 * Kirby's Dream Course
 * Kirby's Avalanche
 * Kirby's Dream Land 3
 * Star Fox
 * F-Zero
 * Earthbound
 * Super Punch-Out!!
 * Pilotwings
 * Tin Star
 * Tetris Attack
 * Pac-Man 2: The New Adventures
 * Mega Man X
 * Street FIghter II: The World Warrior
 * Super Ghouls 'n Ghosts
 * Super Bomberman
 * Super Castlevania IV
 * Contra III: The Alien Wars
 * Sparkster
 * The Legend of Mystical Ninja
 * Super Adventure Island
 * Chrono Trigger
 * The Secret of Mana
 * Killer Instinct
 * Doom
 * Prince of Persia
 * Aero the Acro-Bat
 * Aero the Acro-Bat 2
 * Zero the Kamikaze Squirrel
 * Bubsy in Claws Encounters of the Furred Kind
 * Bubsy 2
 * Earthworm Jim
 * Earthworm Jim 2
 * Mortal Kombat

N64

 * Super Smash Bros.
 * Super Mario 64
 * Mario Kart 64
 * Mario Tennis
 * Donkey Kong 64
 * Diddy Kong Racing
 * The Legend of Zelda: Ocarina of Time
 * The Legend of Zelda: Majora's Mask
 * Yoshi's Story
 * Kirby 64: The Crystal Shards
 * Star Fox 64
 * Pokemon Stadium
 * Pokemon Stadium 2
 * F-Zero X
 * Sin and Punishment
 * Pilotwings 64
 * Mega Man 64
 * Bomberman 64
 * Castlevania 64
 * Mystical Ninja Starring Goemon
 * Banjo-Kazooie
 * Banjo-Tooie
 * Perfect Dark
 * Doom 64
 * Earthworm Jim 64
 * Rampage: World Tour
 * Rampage 2: Universal Tour