This is a sub-page of Sonic Robo Blast 2.
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Over its many versions, SRB2 has had some elements left behind. Some of this content was left with the intention for modders to use it, but since it's hard to differentiate whether content has been left by mistake or on purpose, it has been documented here.
Leftover Music#
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File Name |
Sound |
Notes |
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21 - Doomship Zone |
Scrapped level theme. A revival of this concept under the name Grand Eggship may eventually see the light of day; whether it will use this song or not is unknown. A remix of this track would later be used in 2.2 for the multiplayer map Orbital Hangar Zone. |
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50 - Old/2.0 Era Special Stage |
Used until Version 2.1, which replaced the old Special Stage maps with NiGHTS-style ones. Even when the old Special Stages returned for co-op mode in 2.2, this track stayed unused. |
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51 - Demo 4 Special Stage 1 |
This dates back to an even older version of the Special Stages. Note that the other Special Stage songs from this point of development have long since been removed. Why this one remains is a mystery. |
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94 - Zero Ring Zone |
This Zero Wing-inspired song was used for a multiplayer map that lasted until v1.09. |
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96 - Mine Maze Zone Act 1 |
One of two early level concepts that became Arid Canyon. |
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98 - Old Aerial Garden Zone |
A preliminary candidate for Aerial Garden's theme back when it was still part of the old level pack called Mystic Realm. It sounds more than a bit like Sky Sanctuary. A remix of this track would later be used as the "NiGHTS Mode" selection screen music. |
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Red Volcano Alt. is the digital version of Red Volcano Zone 2's old theme, it is not used anywhere in the game nor does it appear in the sound test.
Leftover Graphics#
CONSBACK#
This screen was originally used for the game starting up in versions prior to 2.2.5, where it was replaced with a disclaimer stating the game should not be sold. Since then, it remains in the files under the name CONSBACK. Despite this graphic's name, it does not appear when using the console.
Credits Sequence#
Stored alongside the graphics used in the Credits are these additional images which were used in 2.0's credits as a bonus for beating Ultimate Mode. Some of these images can also be found on SSNTails' website.
Minus 2.1 Sprite#
In the Tutorial folder, there is a sprite of the old design of the Minus enemy. The filename of it is "Grounder", a clear reference to the character from Adventures of Sonic the Hedgehog.
Brak Eggman 2.2 Sprites#
When 2.2 released, Brak Eggman used the same sprites he had from his debut in 2.0. During 2.2's patch cycle, he was given new sprites, however his old sprites were retained, possibly for compatibility with mods.
Old GFZROCK#
The first version of the main Greenflower Zone wall texture before it was changed to the chess-style texture. This texture can be seen quite prominently in the SAGE 2000 trailer for the game, as well as the March 2000 prototype and numerous pre-release screenshots.
Goal Screens#
In previous versions, this was the screen that the end-of-zone results would appear on after completing a level. The current version has results appear without a screen. This screen would later be used in 2.2.14, with the addition of Final Demo Zone.
Character Hazards#
These were originally used in Egg Rock Zone Act 1 to indicate which paths characters could use. While it was kept for modding purposes, the artwork hasn't been updated to reflect the sprite changes in 2.2.
Leftover Linedef Types#
Type 2 (Custom Exit)#
This Linedef type can be tagged to a sector with with special type 8192 (Exit/Special Stage Pit/Return Flag) to specify the next level after the tally screen. This is not found in any level in Version 2.2.
Type 4 (Speed Pad)#
Turns the floor of the tagged sector into a speed pad which boosts the player's speed. This goes along with the similarly-unused sector types 1280 and 1536. This is not found in any level in Version 2.2.
Type 5 (Camera Scanner)#
This temporarily changes the values of the camera distance, height and rotation as long as the player is in the sector with the effect. This is not found in any level in Version 2.2.
Type 65 (Bridge Thinker)#
Does a great amount of nothing. The original purpose for this was to make pieces of a bridge move downwards when stood on (like in the Genesis Sonic games), but it didn't work properly when multiple players stood on it at once.
Types 386 to 396 (Old Slope Linedef types)#
Those were linedef types present in maps used for slope debugging, still present in the game as of Version 2.1.20. Trying to use those will print a warning in the console, while loading the map:
WARNING: This level uses old slope specials. A conversion will be needed before 2.2's release.
Types 700 to 715 (Slope Linedef types)#
The supported slope specials as of Version 2.1.20. Those are not used in any vanilla maps and are available for modding.
Thing 756 (Light Source)#
In older versions, this thing would generate light in OpenGL mode. However, they are no longer in any of the used levels.
Leftover Enemies#
Yellow Spring Shell#
This enemy was only used in Techno Hill Zone Act 2 in Version 2.1. It behaves the same as the used version of this enemy, only it is faster and its spring launches you up higher.
2.1 Deep Sea Mine#
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The 2.1 version of the mines found in Deep Sea Zone.