341:, courses composed of platforms conjoined by assorted ladders. To trap the aliens, players approach the door from the side its handle is on, open it by running across it, lure the advancing villains inside, and shut the door before they escape. Trapped doors cannot be opened again. Chun can jump to avoid the aliens, who can kill him on touch. Bombs and nails, which sometimes appear on the screen, are also lethal. When the player dies (provided they have continues) they restart the level with previously trapped aliens vanished, and all doors are accessible again.
724:, was released two years after the original in February 1985. The game was ported to MSX computers, NEC's PC-6001, PC-6001mkII, PC-6601, PC-8001mkII, PC-8801, PC-8801mkII, PC-8801mkIISR models, and PC-9801, Sharp's MZ-2000, X1, Hitachi's S1, Toshiba's Pasopia-7, and Fujitsu's FM-7. It features 100 levels and the option to start the game from the new set of levels (beginning with level 51). Encouraged by the rapidly increasing popularity of video game consoles in Japan, Enix also ported
389:. The tenth level, a flat expanse with two Namegon aliens and one door, illustrates this dilemma. Because the level begins with them spaced far apart, it is initially impossible to guide both aliens in the single door without one escaping. Allowing one to escape, however, places it closer to its counterpart, in turn enabling the player to trap both. If the player traps only one, then they must sacrifice one life as the stage will be impossible to complete.
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252:. The game was the runner-up in the Enix-sponsored "First Game and Hobby Program Contest" in 1982, winning the Outstanding Program Award with a prize of 500,000 yen. Enix was given the rights to the game and ported it to several Japanese home computers. Chun, the name of the protagonist, was a nickname given to Nakamura by one of his friends.
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As players advance, the levels become more complicated, many requiring abstract strategies. The eighth level pits Chunt against a lone
Otapyon alien; the player's strategy requires purposely allowing the Otapyon to shadow his jumps with the intention of guiding the unsuspecting Otapyon across the
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The 50th level requires such timing that failure at any part guarantees an impossible-to-win scenario. As in the previous case, the player's only option is to intentionally lose a life to continue play. This is not a programming error, but another aspect of the game's difficulty level. This is a
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remaining. Points are awarded for trapping aliens behind doors (with extra points going to players who corral multiple aliens behind one door) and collecting confectionery that intermittently appear and disappear on the playing screen, which include a striped piece of candy, an
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tile. Players begin with three lives. Scoring 10,000 points awards the player an extra life; scoring intervals of 20,000 points thereafter awards the player more lives. If the player loses all lives, the game is over, forcing the player to restart from the first level.
236:. Controlling a small character named Chun, the player is tasked with completing each stage by trapping different kinds of aliens behind sliding doors. Chun can jump over the aliens and climb ladders, and must also avoid obstacles such as large nails and bombs.
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429:. To pool the talent of individual game designers, Enix sponsored a national programming contest. Three hundred programs were entered into the contest, and the first prize went to programming prodigy and high school student Koichi Nakamura for his puzzle game,
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462:. Like publishing companies and writers, Enix established the concept of royalties between them and their contractors. In 1984, Nakamura created a relatively exclusive contracting company, christened
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paths. The most predictable aliens
Namegon and Amechan follow Chunt in the most direct path possible, Invekun deviates and follows roundabout paths using ladders, and Otapyon shadows Chunt's jumps.
413:; after completing the final level, the game simply restarts at the first level, although the player's accumulated score is retained for the player to build higher through continued play.
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became property of Enix. Enix published the game on a wide range of
Japanese computers, including NEC's PC-8801, Fujitsu's FM-7, and Sharp's MZ-2000. With sales exceeding 200,000 copies,
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decided to set up Enix, going into the PC game business market, in 1982. Fukushima wasn't a programmer himself, and Enix, in a broad sense, was simply intended to be a
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was a huge success. The popularity of the budding console market prompted a 1985 release on
Nintendo's Famicom. In 1986, Enix's third Famicom production and first
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Players control Chunt, a small, egg-shaped creature outfitted with a baseball cap. Chunt is relentlessly pursued by a quartet of aliens traveling in
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was a critical and commercial success — the PC-8801 version alone had sold 200,000 copies, and is considered a classic title for the
Famicom.
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Enix's unique approach as a game company—contracting talent for game development, then publishing the games—started a new trend in the
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placed in the finals of the same contest with a computer tennis game; both were subsequently hired by Enix and the rights to
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for
Japanese mobile phone networks. A faithful reproduction of the Famicom version, the application is available for the
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Famicom cover shows the protagonist Chun leading aliens
Amechan, Invekun, and Namegon into a trapped door.
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This looped animation demonstrates the basics of the game as Chun leads two aliens into a trapped door.
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The status bar running along the top of the playing screen gives the player's
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505i and 900i series phones, and can be downloaded from i-chunsoft for
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If an alien remains with all doors closed, the player is placed in a
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as most games prevent such a scenario with a time limit (such as
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300 per month. To the right is a table of all licensed ports of
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and published in Japan in 1983. Originally released for the
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903:"Famitsu Readers' All-time Favorite Famicom Games"
449:made Horii and Nakamura household names in Japan:
232:, it was ported to other platforms, including the
825:"Door Door (Sharp MZ-2000) Tape Dump & Scans"
747:. A modified version featuring Mean Clean (エコ吉,
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382:level's myriad platforms and into the doorway.
373:, a bowl of ice cream, a slice of cake, and a
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298:. Unsourced material may be challenged and
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360:, the level number, and the number of
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296:adding citations to reliable sources
1142:Nintendo Entertainment System games
403:) or physical restriction (such as
246:, known as one of the creators of
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1033:Famitsu staff (27 March 2004).
930:"The Story Behind Dragon Quest"
242:was designed and programmed by
1152:Video games developed in Japan
1:
1035:""iチュンソフト"で懐かしの『ドアドア』が配信される！"
928:Well, Thomas (30 June 2019).
1092:Japan-exclusive video games
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477:Ports and expanded editions
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976:"The Road to Dragon Quest"
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703:505i and 900i series of
19:Not to be confused with
447:role-playing video game
417:Development and history
332:deterministic algorithm
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754:428: Shibuya Scramble
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657:-inch DD floppy disk
631:3.5-inch floppy disk
541:3.5-inch floppy disk
511:-inch DD floppy disk
292:improve this section
222:puzzle-platform game
995:Fujii (2003), p. 14
964:Fujii (2003), p. 13
460:video game industry
220:is a single-screen
1147:Puzzle-platformers
427:publishing company
423:Yasuhiro Fukushima
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1122:NEC PC-9801 games
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851:"DoorDoor (Game)"
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64:Publisher(s)
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939:17 December
886:17 December
880:Destructoid
860:17 December
804:Hotel Mario
496:NEC PC-8801
230:NEC PC-8801
141:NEC PC-8801
99:NEC PC-6001
91:NEC PC-8801
86:Platform(s)
74:Designer(s)
1137:FM-7 games
1087:Enix games
1076:Categories
855:Giant Bomb
811:References
734:NTT DoCoMo
698:NTT DoCoMo
669:computers
582:Hitachi S1
435:Yuji Horii
358:high score
308:April 2018
115:Hitachi S1
21:Door, Door
1102:MSX games
1041:13 August
1015:12 August
981:13 August
749:eco kichi
745:Door Door
730:Door Door
726:Door Door
688:Cartridge
673:Cartridge
567:Pasopia 7
484:Platform
468:Door Door
443:Door Door
439:Door Door
431:Door Door
411:Door Door
395:Door Door
279:does not
254:Door Door
240:Door Door
217:Door Door
125:, FM-77,
111:Pasopia 7
34:Door Door
797:See also
774:Japanese
643:PC-9801
614:PC-6001
597:Sharp X1
464:Chunsoft
371:lollipop
260:Gameplay
193:Genre(s)
119:Sharp X1
835:23 July
787:Doa Doa
782:Hepburn
683:Famicom
652:⁄
506:⁄
375:Mahjong
367:ice pop
300:removed
285:sources
204:Mode(s)
173:Famicom
137:Release
131:Famicom
934:Medium
487:Media
471:'s
406:Tetris
356:, the
974:tsr.
761:Notes
677:1984
661:1984
635:1984
622:1984
606:1984
591:1984
576:1983
561:1983
545:1983
530:1983
362:lives
354:score
339:level
123:PC-98
1043:2006
1017:2006
1008:ドアドア
983:2006
941:2021
915:2006
888:2021
862:2021
837:2024
778:ドアドア
737:FOMA
701:FOMA
369:, a
283:any
281:cite
226:Enix
168:1983
103:FM-7
68:Enix
57:Enix
667:MSX
641:NEC
612:NEC
551:NEC
294:by
127:MSX
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180:JP
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