Difference between revisions of "Sonic the Hedgehog 2 (8-bit)/Hidden content"
From Sonic Retro
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+ | {{HiddenContent | ||
+ | | title=Level select | ||
+ | | image1=Sonic2SMSLevelSelect.png | ||
+ | | image2=Sonic2GGLevelSelect.png | ||
+ | | desc=When turning on the game hold {{upleft}}+{{1}}{{2}} until 2 ring noises chime. | ||
+ | }} | ||
+ | {{HiddenContent | ||
+ | | title=Extra acceleration | ||
+ | | desc=Pressing {{left}} and {{right}} at the same time on the D-Pad will result in incredible acceleration and speed to the left. This is mainly useful in emulation (and has been extensively used in [http://tasvideos.org/1019M.html the Tool-Assisted Speedrun]), while it's unfeasible on a real unmodified console. | ||
+ | }} | ||
+ | |||
==Unused content== | ==Unused content== | ||
===Character Sprites=== | ===Character Sprites=== |
Revision as of 12:26, 7 April 2019
- Back to: Sonic the Hedgehog 2 (8-bit).
When turning on the game hold + until 2 ring noises chime.
Pressing and at the same time on the D-Pad will result in incredible acceleration and speed to the left. This is mainly useful in emulation (and has been extensively used in the Tool-Assisted Speedrun), while it's unfeasible on a real unmodified console.
Contents
Unused content
Character Sprites
Artwork | Name | Description |
---|---|---|
"Crying Tails" Animations | Some unused sprites of Tails crying. Probably meant to be used in the ending cutscene when he is rescued. | |
Bored Sonic Animation | These three animations are actually from Sonic 1 for the Master System, but were found in Sonic 2 for the Game Gear. Sonic 2 GG used Sonic 1 MS's spriteset, but the waiting animation was changed. This is all of what is leftover. | |
Sonic 1 death sprite | Sonic's death sprite from the Master System version of Sonic 1.[1] | |
Entire Under Ground Zone Boss body | The entire body of the boss can be seen here. Normally only its head is visible. | |
Entire Sky High Zone Boss body | This shows the entire body of the boss. Normally only its head and neck can be seen. |
Unused Monitors
Artwork | Name | Description |
---|---|---|
Sonic Monitor | This one isn't really unused; you can find it hidden in a wall in Crystal Egg Zone, but the graphics are obscured. When collected, it grants a Continue. | |
Question Mark Monitor | This may have given a random amount of rings or items, like in the 2-player mode of Sonic 2 for Mega Drive. | |
Grey Sneaker Monitor | May have slowed you down, like the Slow sneaker in Sonic 3's 2-player mode. | |
Arrow Monitor | This could have been a checkpoint marker, like the 8-bit version of Sonic 1. |
Level Art
Artwork | Name | Description |
---|---|---|
Under Ground Zone Bricks | Several unused bricks. | |
Under Ground Zone Tubes | Originally thought to be a loop, the discovery of a prototype revealed this to be the remains of Green hill zone style tubes for Under Ground Zone. | |
Various Under Ground Zone ground tiles | Miscellaneous ground tiles.[2] | |
Under Ground Zone Floating Platform | An unused floating platform. | |
Sky High Zone boulder | This boulder probably was supposed to roll down a hill in act 1. | |
Sky High Zone platform | An unused floating platform. | |
Sky High Zone object | Probably another platform. | |
Unused Aqua Lake Zone tile | A small additional piece of land which is not used in the final game. |
Gimmick Mountain Name
Originally the level card for Gimmick Mountain wasn't going to have a shortened name. Hivebrain discovered the word "Mountain" within the ROM. Due to lack of space on the screen Mountain was shortened to Mt.
Cheat device codes
These are cheat codes that can only be accessed with game enhancer devices. Support for these codes is available in most emulators.
Game Genie
Official codes, Game Gear Version
Code | Effect | Reference |
---|---|---|
009-04F-3BE | Infinite lives. | |
012-B8D-E66 | Start with 1 life. | |
052-B8D-E66 | Start with 5 lives. | |
092-B8D-E66 | Start with 9 lives. | |
A78-92C-19E | Invincible after 1 ring (Except on act 3). | |
026-5ED-E6E | Each ring worth 2. | |
036-5ED-E6E | Each ring worth 3. | |
046-5ED-E6E | Each ring worth 4. | |
056-5ED-E6E | Each ring worth 5. | |
066-5ED-E6E | Each ring worth 6. | |
076-5ED-E6E | Each ring worth 7. | |
086-5ED-E6E | Each ring worth 8. | |
3A7-E4C-2A2 | Don't lose rings when hit. | |
001-12D-3B7 | Stop timer. | |
3E2-E4D-3B4 + 012-E5D-E69 | Start on Act 2. | |
3E2-E4D-3B4 + 022-E5D-E69 | Start on Act 3. |
Pro Action Replay
Unofficial codes, Game Gear and Master System Version 1.0 and 2.2
Code | Effect |
---|---|
00D3A9:15 | Become Invincible After Being Hit. |
00D298:09 | Infinite Lives. |
00D299:63 | Infinite Rings (Press button 1 at end of level during score totaling). |
00D2BA:00 | Keeps Time At Zero (Minutes). |
00D2B9:00 | Keeps Time At Zero (Seconds). |
00D295:0? | Zone Select (Enable switch after the first 2 screens but before the level starts, after the level starts disable).
|
00D296:0? | Act Select (Enable switch after the first 2 screens but before the level starts, after the level starts disable).
|
00D502:13 | Start with Glider. |
References
Sonic the Hedgehog 2 (8-bit) | |
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Manuals |
show;hide
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