Talk:Sonic the Hedgehog (Genesis)

Robotnic's Feet Are Visible

I don't know where this is coming from, but the legs on the machine Robotnic flys away in during the last zone are completely visible in normal gameplay. You have to end the zone right up against the right hand wall, but since this is the only safe area in the level most players stay there the whole time. TheMasterWho (talk)

The possible true purpose of the goggles and some other unused graphics.

In this topic on Sonic Retro, Dean Sitton answered a few questions related to early game development, among them being the original use of certain unused graphics. For example, the wrecking ball which became part of the first boss was originally used to roll into walls to shatter walls rather than Sonic's roll, and the goggles and Robotnik monitors were "warnings" rather than real gameplay mechanics. The goggle graphics would have just been automatically used underwater ala Kirby and are a red herring. He also guesses that the shrinking and "teleportation" graphics were an early death animation, and the zone icons were merely markers for that particular Special Stage. Since the monitors were empty and Sonic's roll was given an additional feature, it's easy to understand why these were removed - the Robotnik monitor was at least given use in the sequels. LinkTheLefty 12:33, 12 July 2012 (EDT)

The Title Labyrinth Glitch

You will be amazed at this discovery I made 3 or 4 years ago. While playing the game on an emulator, I turned on a Game Genie code that was supposed to activate Level Select without you needing to enter the code. It didn't work, so I decided to play as normal with the code still on. Later, I went back to the title screen, pressed start and POOF! Sonic dissapeared and what replaced him was some glitching and the text from the Labyrinth Zone glitch!

If someone else discovered this before me, I'm going to go CRAZY!--Fastpager200 15:08, 6 February 2013 (EST)

You crashed the game. Way to go. --BMF54123 15:11, 6 February 2013 (EST)

"and the text from the Labyrinth Zone glitch!"...? I can't think of anything that would make sense about what you're saying. Could you please elaborate? {Espyo^T} 18:05, 6 February 2013 (EST)

He's talking about this. He just managed to crash the game and trigger an exception, nothing terribly out of the ordinary. --BMF54123 18:14, 6 February 2013 (EST)

Oh, I remember now. I had such a thing happen to me before on the title screen, on a real console. Probably because of how old and unstable my console is. {Espyo^T} 07:55, 7 February 2013 (EST)

Unused Sprite in Sonic Eraser?

I noticed that one of the unused animations is in a sprite sheet rip for Sonic Eraser here. (Actually, Sonic's appearance in Sonic Eraser is odd in general - his eyelids are nonexistent like in the Sonic 2 Simon Wai proto and the animated series.) I don't know when and where the sprite appears since I saw a few YouTube videos didn't appear to have it. Could be something to note, and if it is used normally in Sonic Eraser. LinkTheLefty 19:32, 23 May 2013 (EDT)

Unused Tiles in Debug Mode

I was playing the game in Debug mode and messing around with the sprite changers and stuff. When i pass the stage as a item, i noticed the sign changed into the tiles for the goggles and "S" monitors. Also, in Marble Zone Act 2, some tiles changed into Robotnik monitor icons. It's probably due to the game loading the unused tiles. Mario Weaboo 22:40, 28 June 2013 (EDT)

I suppose that's how most people find these. I mean, at least 9/10 people that tried debug mode tried using it to fly past the stage towards the checkpoint, and definitely saw those. I suppose it's worthy of mentioning in the article, regardless. {Espyo^T} 08:02, 29 June 2013 (EDT)

Labyrinth Game Crash

I remember seeing this in an old Youtube video, that if you spin-dash after you touch the goal sign in Labyrinth Act 3(?), you would fall down an off-screen pit and crash the game. It might be fixed in REV01, so I think it's mentionable. TheRoflGuy (talk) 15:33, 31 January 2014 (EST)

Spin-dash? You mean a normal spin? What happens is on act 2, if you look down (hold down) after you're past the screen, after the sign post, the game will crash. The end of Labyrinth Zone act 2 is actually filled with bugs! I'll take a look to see if any of them has been fixed for REV01. {Espyo^T} 09:19, 1 February 2014 (EST)

Nope, I can reproduce all three glitches in REV01 as well. Nothing's been fixed. {Espyo^T} 09:34, 1 February 2014 (EST)

Game Genie code for debug mode

It seems like the game genie code for debug mode is EXACTLY THE SAME as the Nick Arcade and Simon Wai of Sonic 2. I'll be checking out other versions as well. Should this be mentioned, or is the button debug code simple enough for novices to not need a Game Genie code? -Hexatendo (talk) 13:03, 12 October 2014 (EDT)

Hm... Game Geine code is FFFFFA:0001. 10:46, {NominalBoy2000^Talk} 28 January 2016 (EST)

Something I noticed in the Sonic Mania trailer

https://s3.postimg.io/m1tvmovyb/sonicmaniapressanybutton.png

The Press Any Button text in the trailer looks very similar, probably exact, to the press start button hidden in the Sonic 1 rom. I have pasted and enlarged the image for comparison sake. Should this be mentioned in the article?

--TheDoc (Talk) 13:49, 22 August 2016 (EDT)

Unused area in Spring Yard Zone act.3

There is an inaccessible area, blocked with an invisible block in Spring Yard Zone act.3, strangely was placed a rotating reflector. Is it interesting to put it in the article? http://imgur.com/a/mpXQA --Porcino (talk) 16:58, 1 April 2017 (EDT)

I'd say it's interesting enough. {Espyo^T} 08:36, 2 April 2017 (EDT)

Possible reason for why the Special Stage 1UP item is unused

I'm not sure if this counts as speculation, so I'm reluctant to add this to the main page. Collecting the 1UP item causes the extra life jingle to play, but a bug in the game's sound driver causes one of the Special Stage music's channels to become disabled. It's a pretty hard-to-miss bug, so I think it's a safe bet that Sonic Team noticed it, causing them to remove the item entirely. Toasty.C (talk) 17:53, 4 April 2017 (EDT)

You're right. But the channels are not disabled, the instruments is that it gets messed up. --Porcino (talk) 21:17, 4 April 2017 (EDT)

When I say 'channel', I'm referring to the hardware side. As far as the sound driver goes, it is still technically playing, yes. It's just that FM6 is left in DAC mode after the 1up music ends, even though the music is trying to use it as a regular channel. Toasty.C (talk) 08:25, 7 April 2017 (EDT)

poor sunky got sliced in half

Should there be a mention on how that despite being "used", the bottom quarter half of Sonic's title screen sprite is cut off by the Sonic ribbon? https://www.spriters-resource.com/genesis_32x_scd/sonicth1/sheet/8877/ blaaby 22:19, 27 October 2017 (EDT)

Arguably. It can be shown with less accurate emulators or by turning off layer priorities. --From: divingkataetheweirdo (talk) 22:21, 27 October 2017 (EDT)

Touché. blaaby 23:42, 27 October 2017 (EDT)

Virtual Console

Just did some testing on the Wii Virtual Console version, and it seems to use the initial revision, should that be noted under Revisional Differences? — The preceding unsigned comment was added by Tornado9797 (talk • contribs)

Unused compressed graphics?

While I was fiddling with S1MapEd, I noticed some listings of graphics I didn't see before in the game, so these may be note worthy:

Stars (nem): Consists of stars using Sonic's pallete. They kinda' look like the invincibility stars, but I digress.

Smoke/dust trail (nem): A trail of some type of white gas with Sonic's pallete. They could've been used for Sonic skidding.

Should any of these be added? (--See you on Scratch or something! -PacManfan64 (talk) 04:51, 16 January 2018 (EST))

What the Spindash looking graphics were ( possibly) ment for

I think that the spindash looking graphic were possibly meant for the tube transport system (or whatever its called) in scrap brain Zone because the spindash looking Graphics are stretched out — The preceding unsigned comment was added by TheTrainMaster08 (talk • contribs)

Labyrinth crash

If there is water in the prototype build, if I Spin Dash to the goal post, when it stops it crashes the game with a Bus Error. That's not cool. — The preceding unsigned comment was added by Justcool101 (talk • contribs)

Splats' True Palette

Shouldn't we use the palette we've always used for Splats? Yes, it appears purple in Marble Zone in the prototype, but it appears off. The debug list gives it the palette we've always given it. --MintChoctopus (talk) 15:31, 17 January 2021 (UTC)

Tom Payne Archive

There are some Sonic 1 sprites in "yamaguchi". What I find funny is that Burrobot/Mogurin's Toho reference is even more obvious, as the grphics file is named "mogera", an alternate romanization of Moguera. — The preceding unsigned comment was added by MargaretThatcher (talk • contribs)

Random misplaced objects I found

Many years ago I took photos of random misplaced objects I had found scattered across the levels, with debug mode. I only have some contextless crusty photos to go by, so somebody should properly investigate what these are, take photos of them, and add them to the article. I really don't have time to do that, and I figured I'd better dump my findings here than let them be lost forever.

• Scrap Brain Zone 1 or 2. Coordinates: 048D068C. There's a girder beneath the floor.
• Scrap Brain Zone 1 or 2. Coordinates: 05C704F1. Another girder, alongside a monitor.
• Scrap Brain Zone 1 or 2. Coordinates: 14BA01D2. Very similar to the previous case, except without a monitor.

{Espyo^T} 18:58, 16 May 2022 (UTC)

"Concept art shows capsules with various attachments"

The article mentions this, but I can't find any of this supposed concept art. Does anyone know what this line is referring to? --Murnjendoof (talk) 23:04, 8 May 2023 (UTC)