Legacy Boss Battle

A Legacy Boss Battle is a boss from one game that appears as a boss in a later installment, often as a Bonus Boss and as a result generally much harder than the original boss fight. Though some storyline bosses can fit as well.

If the boss' game of origin is from another franchise, then these may be Mythology Gags or Lawyer Friendly Cameos.

Of important note is that most Legacy bosses are only fightable in the post-game and don't have any role in the plot. So Big Bad Final Boss examples don't qualify unless the Big Bad of the game his cameo is in is different, or because the fight feels more familiar than the context would indicate.

Compare and contrast Degraded Boss, Recurring Boss Template, Previous Player-Character Cameo, Sudden Sequel Heel Syndrome, Giant Space Flea from Nowhere. Nostalgia Level is the Level version.


Examples:

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     Action Adventure 
  • Metroid: Ridley, a Space Pirate pterodactyl/dragon-thing, has made an appearance for a boss fight in every game in the franchise except for three.note  He is also the Arch-Enemy of the series's protagonist, Samus Aran, after having killed her biological family and the adoptive Chozo family on planet Zebes.
  • Illusion of Gaia has Solid Arm, a boss originally from the first game in the series, Soul Blazer, who's only fightable if you collect all fifty Red Jewels.
  • Onimusha 3: Demon Siege has two fights against Marcellus - the first a full-on boss battle, the second a Degraded Boss encounter. He originally appeared in Onimusha: Warlords, in which he was also fought twice.

     Hack and Slash 

     Platformer 
  • In Mega Man ZX, Omega from Mega Man Zero 3 appears as a Bonus Boss in the N area. Defeating him nets you the Model O Biometal, the strongest in the game. If you have completed both Zero 3 and 4 in their cartridges, linking them to the DS slot can let you fight 4 of each game's bosses in the same area and defeating them all gives you the same reward.
  • In Mega Man Zero 3, taking a secret detour in the second fortress stage will take you to a teleporter. Go inside, and you'll meet Phantom from the first game, or rather his "ghost" since he died. Defeat him and you'll get the Infinity Plus One Foot Chip.
  • After defeating all the robot masters in Mega Man 3, four new stages open up, each having a "Doc Bot" as mid boss and end boss. The Doc Bots all take on the exact same attack pattern of one of the eight robot masters from Mega Man 2, and their sprite is even seen descending into the Doc Bot before the fight starts.
  • Mega Man 10 has Downloadable Content, among them three stages featuring bosses from the Game Boy Mega Man (Classic) games. More specifically, the "Mega Man Killers." Also, the first Wily stage in 10 featured a boss called Weapons Archive which essentially recreated the battles from 9 bosses from the previous 10 games.
  • Super Mario Galaxy 2's Boss Blitz Galaxy is a Boss Rush bonus mission, where all five bosses are ones from the original game not fought anywhere else.
  • In Kirby's Return to Dream Land, Galacta Knight from Kirby Super Star Ultra appears as an extra boss in the True Arena. In this game, he cannot be fought everywhere else.
  • In Kirby: Triple Deluxe, Dark Meta Knight from Kirby and The Amazing Mirror acts as the final boss of King Dedede's mode.
  • Sonic the Hedgehog:
    • A Pre-Final Boss example. In Sonic Advance's final stage, Dr. Eggman reprises the first bosses from both Sonic The Hedgehog 1 and Sonic the Hedgehog 2, complete with the boss themes from both games, before the actual Final Boss battle occurs. And there seems to be no other reason for Eggman to go to the trouble of reenacting fights that he had lost before.
    • In Sonic the Hedgehog 4 Episode I, all of the boss fights start out as Legacy Bosses (though the Mad Gear boss works rather differently from its Metropolis Zone predecessor), befitting a game made entirely up of Nostalgia Levels. Episode II pretends it's going to do the same in Sylvania Castle, only to have the real boss turn up and destroy the Sonic 2 Call Back totem poles.
    • Years before the above two, Sonic 3 & Knuckles had two boss fights partway through Sky Sanctuary Zone in which Metal Sonic piloted replicas of the first Sonic 1 boss and the Sonic 2 Metropolis Zone boss mentioned previously. Interestingly, while the bosses' behavior was essentially identical, the newer game's slightly different physics made the former more difficult and the latter considerably easier.
  • The Black Plague fight in A2XT is an updated version of his original level in the rom-hack Super Mario Infinity, room design and battle mechanics included.
  • In ActRaiser 2, you can fight the final boss from the first game by using the password "Xxxx Yyyy Zzzz".

     Real Time Strategy 
  • Warcraft III has an optional fight against an enormous monster called the Butcher, a boss from the Diablo series.

     Role Playing Game 

     Turn Based Strategy 

     Light Gun Game 
  • The Magician reappears as the penultimate (unique) boss of The House of the Dead 2, in a form only slightly weaker than his final boss incarnation in the previous game. He also appears as a Bonus Boss in The House of the Dead 4's Playstation 3 port.

     Survival Horror 
  • Five Nights at Freddy's II features Golden Freddy as an opponent on the 6th night. While he was basically an Easter Egg in the original game who would rarely appear suddenly in the office and crash the game if you didn't immediately look away, in the sequel he wanders the halls with the other animatronics, though he's by far the deadliest of them all.