Hidden content
From NEC Retro
Hidden content refers to content that is not documented in any instruction manuals nor seen in normal play. This can range from cheats that require the player to input hidden passwords or button sequences at certain points, Easter eggs programmed in by developers for clever players to find, debugging tools, unused code, or even features that had to be cut due to developers struggling to get a game in stores by a certain date. More often than not, scrapped features can be accessed using in-game cheats, through the use of cheat devices, or by hacking/datamining.
This category documents all of these hidden tidbits found in games released for NEC systems, be it cheats, unused graphics, music, or otherwise. This does not include content unlocked in normal play unless there is a hidden code to unlock it immediately.
Pages in category "Hidden content"
The following 200 pages are in this category, out of 498 total.
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F
- F1 Circus '91/Hidden content
- F1 Circus '92/Hidden content
- F1 Circus Special: Pole to Win/Hidden content
- F1 Circus/Hidden content
- F1 Triple Battle/Hidden content
- Faerie Dust Story: Meikyuu no Elfeene/Hidden content
- Fantasy Zone/Hidden content
- Farjius no Jakoutei: Neo Metal Fantasy/Hidden content
- Farland Story FX/Hidden content
- Fausseté Amour/Hidden content
- Fiend Hunter/Hidden content
- Fighting Run/Hidden content
- Fighting Street/Hidden content
- Final Blaster/Hidden content
- Final Match Tennis/Hidden content
- Final Soldier/Hidden content
- Final Zone II/Hidden content
- Fire Pro Joshi Dome Chou Jo Taisen Zenjo vs JWP/Hidden content
- Fire Pro Wrestling 2nd Bout/Hidden content
- Fire Pro Wrestling 3: Legend Bout/Hidden content
- Fire Pro Wrestling: Combination Tag/Hidden content
- Flash Hiders/Hidden content
- Forgotten Worlds/Hidden content
- Formation Soccer 95 della Serie A/Hidden content
- Formation Soccer on J.League/Hidden content
- Formation Soccer: Human Cup '90/Hidden content
- Fushigi no Umi no Nadia: The Secret of Blue Water/Hidden content
- Fushigi no Yume no Alice/Hidden content
G
- Gai Flame/Hidden content
- Gain Ground SX/Hidden content
- Galaga '88/Hidden content
- Galaxy Deka Gayvan/Hidden content
- Gambler Jiko Chuushinha: Mahjong Puzzle Collection/Hidden content
- Games Express CD Card/Hidden content
- Ganbare! Golf Boys/Hidden content
- Garou Densetsu Special/Hidden content
- Gate of Thunder/Hidden content
- Gekisha Boy/Hidden content
- Genji Tsuushin Agedama/Hidden content
- Genocide/Hidden content
- Genpei Toumaden/Hidden content
- Ginga Fukei Densetsu Sapphire/Hidden content
- Ginga Ojousama Densetsu Yuna 2: Eien no Princess/Hidden content
- Ginga Ojousama Densetsu Yuna/Hidden content
- Go! Go! Birdie Chance/Hidden content
- Godzilla (Super CD-ROM²)/Hidden content
- Golden Axe/Hidden content
- Gomola Speed/Hidden content
- Gradius II: Gofer no Yabou/Hidden content
- Gradius/Hidden content
- GS Mikami/Hidden content
- Gulclight TDF 2/Hidden content
H
- Hana Taaka Daka!?/Hidden content
- Hataraku Shoujo: Tekipaki Working Love/Hidden content
- Hatris/Hidden content
- Heavy Unit/Hidden content
- High Grenadier/Hidden content
- Hisou Kihei X-Serd/Hidden content
- Hit the Ice/Hidden content
- Honey in the Sky/Hidden content
- Honey on the Road/Hidden content
- Honoo no Toukyuuji: Dodge Danpei/Hidden content
- Horror Story/Hidden content
- Human Sports Festival/Hidden content
- Hyaku Monogatari: Hontou ni Atta Kowai Hanashi/Hidden content
I
J
- J.J. & Jeff/Hidden content
- J.League Greatest Eleven/Hidden content
- J.League Tremendous Soccer '94/Hidden content
- Jack Nicklaus' Greatest 18 Holes of Major Championship Golf/Hidden content
- Jackie Chan's Action Kung Fu/Hidden content
- Janshin Densetsu/Hidden content
- Jantei Monogatari 2: Uchuu Tantei Diban Kanketsu Hen/Hidden content
- Jantei Monogatari 3: Saver Angels/Hidden content
- Jantei Monogatari/Hidden content
- Jigoku Meguri/Hidden content
K
- Kabuki Ittou Ryoudan/Hidden content
- Kagami no Kuni no Legend/Hidden content
- Kaizou Choujin Shubibinman 3: Ikai no Princess/Hidden content
- Kaizou Choujin Shubibinman/Hidden content
- Kakutou Haou Densetsu Algunos/Hidden content
- Kattobi! Takuhai-kun/Hidden content
- Kaze no Densetsu Xanadu II/Hidden content
- Kaze no Densetsu Xanadu/Hidden content
- Keith Courage in Alpha Zones/Hidden content
- Kiaidan 00/Hidden content
- KickBall/Hidden content
- Kiki Kai Kai/Hidden content
- King of Casino/Hidden content
- Kishin Douji Zenki FX: Vajura Fight/Hidden content
- Kisou Louga II: The Ends of Shangrila/Hidden content
- Kisou Louga/Hidden content
- Klax/Hidden content
- Knight Rider Special/Hidden content
- KO Seiki Beast Sanjuushi: Gaia Fukkatsu Kanketsu Hen/Hidden content
- Kore ga Pro Yakyuu '89/Hidden content
- Kore ga Pro Yakyuu '90/Hidden content
- Kyuukyoku Tiger/Hidden content
L
- L-Dis/Hidden content
- Lady Phantom/Hidden content
- Lady Sword: Ryakudatsu Sareta 10-nin no Otome/Hidden content
- Langrisser: Hikari no Matsuei/Hidden content
- Last Alert/Hidden content
- Last Armageddon/Hidden content
- Legend of Hero Tonma/Hidden content
- The Legendary Axe II/Hidden content
- The Legendary Axe/Hidden content
- Legion/Hidden content
- Linda³/Hidden content
- Lords of the Rising Sun/Hidden content
- Lords of Thunder/Hidden content
M
- Mad Stalker: Full Metal Force/Hidden content
- Madou Ou Granzort/Hidden content
- Magical Chase/Hidden content
- Magicoal/Hidden content
- Mahjong Clinic Special/Hidden content
- Mahjong Gakuen Mild: Touma Soushirou Toujou/Hidden content
- Mahjong Gakuen: Touma Soushirou Toujou/Hidden content
- Mahjong Gokuu Special/Hidden content
- Mahjong Haouden: Kaiser's Quest/Hidden content
- Mahjong Lemon Angel/Hidden content
- Mahjong Sword: Princess Quest Gaiden/Hidden content
- Mahjong Vanilla Syndrome/Hidden content
- Maniac Pro Wres: Asu e no Tatakai/Hidden content
- Martial Champion/Hidden content
- Mashou Denki: La Valeur/Hidden content
- Metal Angel 2/Hidden content
- Metal Stoker/Hidden content
- Metamor Jupiter/Hidden content
- Might and Magic III: Isles of Terra/Hidden content
- Military Madness/Hidden content
- Miraculum: The Last Revelation/Hidden content
- Mirai Shounen Conan/Hidden content
- Mitsubachi Gakuen/Hidden content
- Momotarou Densetsu Gaiden Dai 1 shuu/Hidden content
- Momotarou Densetsu Turbo/Hidden content
- Monster Pro Wrestling/Hidden content
- Moto Roader II/Hidden content
- Moto Roader MC/Hidden content
- Moto Roader/Hidden content
- Motteke Tamago/Hidden content
- Mr. Heli no Daibouken/Hidden content
- Mr. Robot and His Robot Factory/Hidden content
- Mugen Senshi Valis: The Legend of a Fantasm Soldier/Hidden content
- Mysterious Song/Hidden content
- Mystic Formula/Hidden content
- Märchen Maze/Hidden content
N
- Naxat Open/Hidden content
- Naxat Stadium/Hidden content
- Nazo no Mascarade/Hidden content
- Necros no Yousai/Hidden content
- Nekketsu Koukou Dodgeball Bu: PC Bangai Hen/Hidden content
- Nekketsu Koukou Dodgeball Bu: PC Soccer Hen/Hidden content
- Neo Nectaris/Hidden content
- Neutopia II/Hidden content
- New Adventure Island/Hidden content
- Nexzr/Hidden content
- NHK Okaasan to Issho Niko Niko Pun/Hidden content
- NHK Taiga Drama Taiheiki/Hidden content
- Ninja Ryuukenden/Hidden content
- Ninja Spirit/Hidden content
- The Ninja Warriors/Hidden content
- No-Ri-Ko/Hidden content
O
P
- P-47: The Freedom Fighter/Hidden content
- Pac-Land/Hidden content
- Pachio-kun 3 Pachislot & Pachinko/Hidden content
- Pachio-kun Maboroshi no Densetsu/Hidden content
- Pachio-kun Warau Uchuu/Hidden content
- Parasol Stars/Hidden content
- Parodius Da! Shinwa kara Owarai e/Hidden content
- Pastel Lime/Hidden content
- PC Engine mini/Hidden content
- PC Pachi-Slot: Idol Gambler/Hidden content
- Pop'n Magic/Hidden content
- Populous/Hidden content
- Populous: The Promised Lands/Hidden content
- Power Drift/Hidden content
- Power Eleven/Hidden content
- Power Golf/Hidden content
- Power League '93/Hidden content
- Power League 4/Hidden content
- Power League 5/Hidden content
- Power League II/Hidden content
- Power League III/Hidden content
- Power Tennis/Hidden content
- Princess Maker 1/Hidden content
- Princess Maker 2/Hidden content
- Princess Minerva/Hidden content