{{CardTable2| ja_name = {{Ruby|超|ちょう}}{{Ruby|重|じゅう}}{{Ruby|蒸|じょう}}{{Ruby|鬼|き}}テツドウ-{{Ruby|O|オー}}| romaji_name = Chōjū Jōki Tetsudō-Ō| trans_name = Superheavy Steam Oni Tetsudo-O| image = SuperheavySamuraiSteamFiendTetsudoo-CP17-JP-OP.png| attribute = EARTH| type = Machine| type2 = Synchro| type3 = Effect| level = 12| atk = 2000| def = 4800| passcode = | materials = 1 "Superheavy Samurai" Tuner + X or more non-Tuner "Superheavy Samurai" monsters| effect_types = | lore = 1 "[[Superheavy Samurai]]" [[Tuner monster|Tuner]] + X or more non-Tuner "Superheavy Samurai" [[Monster Card|monsters]]<br />This card can [[attack]] while in [[face-up]] [[Defense Position]]. If it does, apply its [[DEF]] for [[damage calculation]]. [[Once per turn]]: You can [[discard]] up to (3?) cards, then [[target]] that many cards your opponent [[control]]s; [[destroy]] them. Once per turn: You can [[banish]] as many [[Spell Card|Spell]]/[[Trap Card]]s in each player's [[Graveyard]]s as possible, and if you do, inflict 200 [[Effect damage|damage]] to your opponent for each card banished this way.| ja_lore = | jp_sets = {{Card table setInfobox/header|jp}}{{Card table set|CP17Yu-JP011|Collectors Pack 2017|}}{{Card table set/footer}}| archseries = Superheavy Samurai| supports_archetypes = Superheavy Samurai| summoning =* Requires archetype specific Tuner Synchro Materials* Requires archetype specific nonGi-Tuner Synchro Materials| attack =* Defense Position attacker* Applies DEF for damage calculation| action = Discards for cost| mOh!/sMisc/t =* Destroys your opponent's Monster Cards* Destroys your opponent's Spell Cards* Destroys your opponent's Trap CardsStart | banished =* Banishes from your Graveyard* Banishes from your opponent's Graveyard| life_points image name = Damages your opponent| database_id = | ocg = Not yet releasedAlcatraz island.jpg
}}
{{Infobox/Yu-Gi-Oh!/Misc/ExtendedName
| kanji =
| romaji = Arukatorazu
| english = Alcatraz
| alternate = Duel Tower
}}
{{Infobox/Yu-Gi-Oh!/Misc/Appears
| manga = [[Yu-Gi-Oh! Duelist]]
| anime = [[Yu-Gi-Oh! (second series anime)]]
}}
{{Infobox/Yu-Gi-Oh!/Misc/End}}
'''Alcatraz''', or Duel Tower in the English anime, was the name of an island, used by [[KaibaCorp]] initially as a military base and later became host to a massive Duel Tower.
The location is named after the real world island, [[wikipedia:Alcatraz Island|Alcatraz]], which was formerly used for military activity and later a maximum security prison, which has since been closed.
==History==
===Military center===
The tower itself is built on a small island. While [[Gozaburo Kaiba]] was in charge of [[KaibaCorp]], the island was used for KaibaCorp's military base.
After [[Seto Kaiba]] came into power, he tore down the military base and constructed the Duel Tower on its ruins to emphasis the company's shift from military to gaming.
The inside of the tower was used to stage a battle royale to determine the match-ups for the semi-finals. Each finalist stood in an elevator like platform in a corner of the room. As their Life Points lowered, they were lifted higher up. The first two to the top would face each other in the first semi-final round and the remaining two would face each other in the second.
With Kaiba set on facing [[Yugi Muto]], [[Joey Wheeler]] set on facing [[Marik Ishtar]] and Yugi supporting Joey's choice, Marik and Joey's Life Points hit 0 first, pairing them up for the first semi-final and leaving Yugi and Kaiba for the second.
[[File:Alcatraz Burns.jpg|thumb|right|The destruction of the Duel Tower.]]
The semi-finals and finals each took place on top of the tower.
Kaiba faced Joey in a third place playoff, just outside the tower.
After the Battle City finals, Seto and [[Mokuba Kaiba]] had the building self-destruct to get rid of their memories of living with Gozaburo.