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Hidden Palace Zone (ヒドゥンパレスゾーン Hido~un Paresu Zōn?) is a mysterious Zone which was originally removed late in the development of Sonic the Hedgehog 2 for the Sega Mega Drive. It is an underground cavern full of water featuring sparkling gems and rocky regal structures, possibly ruins of some ancient civilization. It was among the last levels deleted from the game. A stage with the same name later appeared officially in Sonic & Knuckles, with this incarnation serving as its inspiration.

Eventually, this version of Hidden Palace Zone was officially completed and included in the 2013 remaster of Sonic the Hedgehog 2. It was also included in Sonic Origins due to the 2013 remaster of Sonic the Hedgehog 2 was ported into said game.

Beta[]

Development[]

Early mock-up image of Hidden Palace Zone was sent to various magazines to promote Sonic the Hedgehog 2. For years, this is the most that players had seen of the level. It was determined not to be a screenshot from a prototype for several reasons: Sonic's sprite is different than any of those seen in earlier versions of Sonic the Hedgehog 2, Sonic is off-center, he is running in mid air, the use of background is different, the placement of two enemies at the bottom is off, the HUD is not italicized, etc. These are some of the same characteristics seen in other promotional mock-up pictures sent out by Sega during the same time frame. A promotional VHS from Spanish gaming magazine Super Juegos from October 1992 also features gameplay footage of Hidden Palace Zone from the later prototype.[1]

Hidden Palace Zone was intended to be a two-act stage and the Zone where Sonic would convert to Super Sonic after collecting all seven Chaos Emeralds. However, it was then changed to one act before the developers eventually scrapped the proposal and instead, the player would access Super Sonic regardless of which Zone he is in.[2][3]

Hidden Palace Zone was one of five Zones that were removed from the game, with Yuji Naka claiming that one of them was fully completed before being removed in the very last minute due to memory limitations.[4] In ICEknight's interview with the level artist, Craig Stitt, he expressed dissatisfaction with the decision to remove the Zone just a few days before the game was declared complete.[3]

Playability[]

Players first noticed a somber music track listed as "Sound Test 10" that did not play anywhere else in the game, leading some to wonder if it was related to the elusive Zone that was exposed in preview images. When Sonic the Hedgehog 3 was released, the level icon for Hidden Palace was spotted in the standalone Sound Test option (as it was directly built off the prequel's engine), suggesting that remnants of Hidden Palace still existed in the game data of Sonic the Hedgehog 2. It was eventually discovered that players can still access a garbled version of it with a cheat device, confirming that the unused music track was intended for this Zone in some late form. However, the Zone was overwritten with a vaguely-defined Oil Ocean object list, as the player falls to their doom when the Zone is accessed.

When the Simon Wai prototype was eventually leaked, a much more playable (but still obviously incomplete) version of Hidden Palace Zone was made available for the first time. Only a small part of the level was actually finished, as it cuts off after a certain point. A slot for a second act was also found at this point of development, but that had even less work done, as it was a copy of the first act with an empty object layout. There was much speculation about other features seen in this version of the level as well, such as the large ramp at the end that cannot that cannot be climbed up without Debug Mode, and the tubes similar to the ones in Chemical Plant Zone.

One of the more infamous objects was the Tails 1-Up monitor that appears even while playing as Sonic. Despite this, it still functions as a regular 1-Up monitor. In truth, the monitor designations were re-assigned at some point and the object subtype number for the Tails 1-Up monitor was originally the object subtype number for Sonic 1-Up monitor from the original Sonic the Hedgehog. The early Nick Arcade demo, which was an even earlier prototype of Sonic the Hedgehog 2 shown to be a heavily edited Sonic 1, places Tails 1-Up monitors in Green Hill Zone where the Shield monitor should be, proving that the Tails 1-Up monitor in Hidden Palace Zone was meant to differ. The Tails 1-Up monitor must have been placed very early in the game's development cycle (before the programming for the object subtypes was changed), as it was one of the first levels to be worked on. Had the level originally been worked on further, it is certain the Tails 1-Up monitor would have been swapped with the proper Sonic 1-Up monitor. The Shield monitor in the beginning was also presumably meant to be a Super Ring monitor, based on the changes in object subtype numbers.

2013 remaster[]

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In the 2013 remaster of Sonic the Hedgehog 2, this Zone can be accessed in Mystic Cave Zone Act 2 by falling through a pit (this is the infamous inescapable spike pit in the original, but the spikes were removed in the remaster) around halfway through the act. The zone is completely optional.

Gameplay[]

This Zone only has one Act, so the player must make their way through to reach the end for the boss battle.

Overview[]

The Zone begins with the player character falling through the pit, similar to the intro of Lava Reef Zone in Sonic & Knuckles. While pieces of the level design are borrowed from pre-release versions of the Zone, it is for all intents and purposes a complete re-imagining of the level. In addition to some familiar features, not previously seen in any version of the game are as a jellyfish-type Badnik that acts similar to Grabber, fully functional water slides, the unscalable diagonal tunnels given a propelled zipline device, spiky mines that are swung back and forth and a unique Dr. Robotnik boss fight (dubbed Brass Eggman) involving musical instruments, explosive debris and water. The Tails 1-Up monitor from the prototype is also gone and replaced with a shortcut just beyond the space it occupied and the Master Emerald breakable objects now conceal springs. When the Capsule is opened and the Zone is cleared, the player proceeds to Oil Ocean Zone, skipping the remainder of Mystic Cave Zone.

Badniks[]

In the Simon Wai prototype version of Sonic the Hedgehog 2, Hidden Palace Zone only has two Badniks by that point of development: Redz and BBat. Through hacking, the triceratops Badnik from magazine previews (Stego) was found, and both it and BFish were found in the Debug Mode of the earlier Nick Arcade prototype (which was leaked much later). In the 2013 remaster, the triceratops was reinserted and the aquatic robot was replaced by the previously unseen Jellygnite.

Boss[]

Main article: Brass Eggman
Brass eggman

Sonic facing Brass Eggman, from the 2013 remaster of Sonic the Hedgehog 2.

In this boss fight, Robotnik flies in front of a giant archaic organ, always following Sonic's movements. The massive bell on his Egg Mobile will activate every few seconds. He begins with four descending notes, causing four hazardous spiked balls to fall from the ceiling and land on the water below the arena. The water will then rise over the platform, taking the floating balls with them for a second or two. After being lowered to the original water level, the balls will detonate and emit a vertical splash that must be avoided. After a few more seconds, a long and loud bellow will emit from Robotnik's bell, causing the screen to shake until one larger spike ball descends, and proceeds to move slowly back and forth along the bottom of the screen. Robotnik must be tricked into moving above the bomb as it detonates, causing a water jet to knock the scientist from the sky, allowing a short time frame for Sonic to attack.

Development[]

The head developer of the 2013 remaster of Sonic the Hedgehog 2 Christian Whitehead was behind the implementation of Hidden Palace Zone in this port though he used some of Simon Thomley's concepts. During developing stages, Sonic Team was not happy with the panning of the level, commenting that Sonic could not move through the stage as fluidly and fast and did not have the right feel of Sonic as a result. As such, Whitehead and Thomley decided to give the level its own experience, complete with its own level design, gimmicks and enemies, making it a secret Act of Mystic Cave Zone. Instead of conceiving Hidden Palace as a place where Sonic would obtain his Super State, the Zone had a Phantom of the Opera vibe; with a being that lived down there maintaining a grand cathedral but has been lost from time to time".[5]

Proto Palace Zone[]

Main article: Proto Palace Zone

In addition to the official Hidden Palace Zone being added to the 2013 remaster of the game, a copy of the original Hidden Palace Zone prior to its deletion titled Proto Palace Zone is also included but it is not accessible via regular gameplay.

In other media[]

Books and comics[]

Archie Comics[]

Trivia[]

  • This is one of the two Zones in Sonic the Hedgehog 2 not to be featured in Boss Attack Zone, the other being Sky Chase Zone (three if counting Proto Palace Zone).
  • When using Debug mode in the original Hidden Palace, the player will be given the sprite set for Oil Ocean Zone. The sprites for it will also appear glitched, and when using breakable boxes, it will make the player speed forward in a Spin Attack state. The only way to stop it is by using Debug Mode.
  • Due to Act 2 having no Rings, a Perfect Bonus is given to the player if a Capsule is placed in using Debug Mode.
  • The background music for Hidden Palace Zone in various betas and the 2013 remaster of Sonic the Hedgehog 2 is the multiplayer music of Mystic Cave Zone from the original Sonic the Hedgehog 2.

Music[]

Name Artist(s) Length Music track
N/A (Simon Wai prototype) Masato Nakamura, Izuho Takeuchi 1:02
"StH2 Mystic Cave Zone (2P) ~Mega Drive Version~" (2013 remaster) Masato Nakamura 2:05
"STH2 Unused Song 〜Mega Drive version〜" Masato Nakamura 0:58

Video[]


See also[]

References[]

  1. Lo Nunca visto de SEGA (Sonic 2) - Documental VHS Retro Super Juegos. YouTube. RetroGosus (15 December 2021). Retrieved on 29 December 2021.
  2. Sega's Yuji Naka Talks!. GameSpy. Retrieved on 3 January 2015. "GameSpy: Was the Hidden Palace meant to be "hidden," then? / Yuji Naka: You'd encounter the stage through normal play by collecting the emeralds. The idea behind the stage was, "Where do the Chaos Emeralds come from?" That's where Sonic was originally supposed to be granted his Super Sonic powers. We finally were able to use it in S&K, though it wound up being quite different from what we had planned in Sonic 2. But even from Sonic 1 we'd been throwing around those sorts of ideas. Still, when we were running out of time, we looked over things quickly trying to figure out what to dump ... and CHOP went the Hidden Palace. There's simply no way we could have thrown that in by the deadline at the rate we were going."
  3. 3.0 3.1 Craig Stitt Interview. Sonic Research Zone (23 January 2001). Retrieved on 25 January 2015.
  4. "The People Making Sega's Future". Beep! Mega Drive (SoftBank): 46–48. January 1993. Archived from the original on 29 December 2021.. "Yuji Naka: There's still so much I want to add. For Sonic 2, we had to remove so much due to memory limitations. We actually made about five more zones, but in the end, we had to cut them all. We actually cut one zone at the absolute very last minute. Even though it was basically complete, we couldn't use it because of a lack of memory. There just wasn't enough space."
  5. Mawson, Chris (2 April 2015). Sonic the Hedgehog 3 Remastered Interview with Christian 'The Taxman' Whitehead. Power Up Gaming. Retrieved on 19 April 2017.

Main article (Knuckles in Sonic 2) · Staff · Manuals · Glitches · Beta elements · Gallery · Pre-releases (Nick Arcade, Simon Wai) · Re-releases (2006, Dash!, Crash!, 2013, 3D, Sega Ages)
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