Sonic Heroes

Sonic Heroes lets you control teams of three characters and change between Speed, Flying, and Strength whenever that character is needed.

Unused Voice Clips
First off, voice clips for lines that have different variations, depending on the controls of the platform used, are present in all ports of the game. So, for instance, the PC version has unused dialogue for Sonic describing Rocket Accel with the GameCube's controls despite being presented with the Xbox controller layout.

Chaotix' Singing
Team Chaotix' Team Blast is really noisy: each character's singing is either cut off by the next one or a sound effect, or the volume is reduced drastically, making it impossible to hear these hilarious lines normally.

Teammate Roll Call
Characters calling out their teammate's names. These aren't used anywhere. (all01_e00* lines call out the "next" character on the team, all01_e01 call the "previous", in the order of Speed, Flight, Power.)

Rose and Chaotix' Team Blasts
Teams Rose and Chaotix explaining how their Team Blasts (Flower Festival and Chaotix Recital, respectively) work. The only point in the game in which this is said is on the final whale island on Seaside Hill, which isn't a part of the stage for these two teams. Only the first control variation clip (GCN) was taken, so replace "Z" with your platform's Team Blast button.

Weights and Waits
There are heavy weights in the game that can squish characters, rendering them unusable. The characters should say one of the lines from the second half of this table, reflecting the fact that they've been squashed, but instead they just say their normal "I'm stuck!" lines, used for the capture robots called Klagen. When a character is unavailable, it'll be waiting inside a checkpoint.

The first half of these lines should play for when you finally free a character from a checkpoint, but no special sound clip plays.

Omochao Gates
These hint to the existence of an "Omochao gate" that was meant to be opened by talking to or using a nearby Omochao. Either way, it's safe to say the removal of this element was a very wise idea.

Klagen Lines
Alternate lines for when a character is captured by a Klagen, and lines for when a Golden Klagen takes a character away. None of these are ever used: when a Klagen captures someone, they say another "Let me go!" line, and when a Golden Klagen is leaving, nobody says anything.

Eggman's Taunts
Miscellaneous taunts by Eggman, including a custom one for each team. And yes, the first one cuts off.

Team Blast Limitations
In team battles, both teams can use Team Blast at any point, provided the energy gauge is full. However, these unused lines hint that at some point, if one of their characters fell, your opponents wouldn't be allowed to use Team Blast. It actually works quite the opposite in-game: when Team Blast is used, all fallen teammates on that team will rejoin the battle.

Invisible Metal Sonic
Some lines hint that there used to be an attack that made Metal Sonic invisible.

Rose's V.I.P. Room
Team Rose's Casino Park ends before the V.I.P. room area, but there are still lines recorded for it and they can be heard if that area is somehow reached.

Chaotix' Lava Room
Team Chaotix' Power Plant ends before the rising lava room, but there are voice clips recorded for when the lava rises. If you somehow get to the room, it only has a spring, a grate, the final vertical door...and nothing else. The voice clips don't even trigger.

Japanese Leftovers
Two voice clips from the Japanese voice files that remained in the English voice files.

Rose's Giant Mushroom
In Frog Forest, Team Rose's level ends just before the giant mushroom section, so these comments go unused. Also of note is that while the access to the higher platform with a flower (which gives an alternate giant mushroom dialogue) has been removed for Team Chaotix, it's still easily possible to go there: if you go to the highest point of a nearby grindable vine as Charmy, jump as high as possible, on the peak of your jump fly, and on the top, shoot your teammates and climb up, you'll be able to access it, which makes this alternate dialogue not really unused.

At least the exploits used to access other unused stuff are a lot more complex than this simple jump.

Rose's Speed Trial
Even though Team Rose can never get to the three type trials in Mystic Mansion, there are voice clips for how to get past the Speed trial, the one where the characters say they need to use Homing Attack to jump on the ghosts in order to get across.

Room Full of Doors
Some comments regarding a room full of doors and a switch in Hang Mansion. There doesn't seem to be any such room in the game.

Rose's Bullet Dodging
Team Rose's Egg Fleet ends before the bullet-dodging propeller flight part, but these clips still exist.

Rose's Landings
Alternate comments for when Team Rose is landing on a battleship in Egg Fleet, different from the ones used.

Colored Rails
Incorrect comments explaining how the lasers work in Final Fortress. These state that the colored lasers fire at the rail of the same color, even though all rails are the same color in-game. In addition, there are also some comments about the rails lighting up (these are a lot more accurate). None of these clips are used.

Rose's Final Team Blast
There's a section in Final Fortress where some large robots gather up, arguably the hardest non-boss fight, as well as the last one. There's a Hint Orb nearby suggesting the use of Team Blast. Team Rose's level ends before this bit, but there are still recorded lines for the Team Blast hint.

Charmy Goes Alone
There are some clips for Charmy going somewhere and having to leave his teammates behind in Rail Canyon, but there's no such moment in-game.

Rose Being Shot
There are comments Team Rose was meant to say after being shot by the second cannon, but that part doesn't belong to Rose's Bullet Station; it isn't even loaded. To top it all off, Amy's voice clip is empty.

Unused Enemy
Unidus, which had appeared in Sonic Adventure and Sonic Adventure 2, is present in the game files.

Unused Textures
The textures are accessed in pretty much the same way one would access those of Grand Theft Auto III, but most of the files either don't open correctly or are just brutally unorganized.

Included in the textures for Stage 14, Final Fortress, is a 512&times;512 version of the sky texture. Only the 256&times;256 version is used in the stage and subsequent boss fight.

Strangely, the PC version is essentially "padded" with duplicate texture files, such as "event____.txd" files. Also, comsoon.txd is empty.

Inaccessible Areas
Team Rose's levels finish about halfway through the full level, which is played by Teams Sonic and Dark. However, using glitches, exploits, or cheats, one can have Team Rose explore sections of the level beyond the Goal Ring. Oddly, some of these areas still have rings and other items that the Team can collect. At the end lies the Goal Ring used by the other teams. In competitive ring challenges, the use of these areas for Team Rose is crucial. Some of these places can also be accessed by Team Chaotix.

Despite never entering these areas, some teams have dialogue for them which goes unused.



Another example is that the last area in Mystic Mansion where the torches and hammer enemies are cannot be accessed with other teams unless a cheating device is used. The rings and others are located in the same placement as for Team Chaotix in Super Hard.

Hidden Setting
In the PC version, adding the line Charmy_Shutup 1 to "%AppData%\SEGA\SONICHEROES\sonic_h.ini" will disable all voice clips that do not have accompanying subtitles (such as attacks, idling, and scoring).

Misc

 * As seen here, there's a self-destruct switch out of the wall in Team Rose's Final Fortress, to the left of where it normally is. If you fly next to the left wall, you'll be able to see it, and you can actually press it if you use glitches.
 * Voice clip shenanigans:
 * In some copies of the game, mostly PC ones, Cream's A-rank line voice clip file is empty. In the copies that don't have this problem, she says "I'm so happy, I want to tell everyone!"
 * There are some clips in-game for when the characters explain the bobsled controls. However, these explain that if the Flight character is thrown off, the bobsled won't be able to jump. The order for character removal is Speed, Power, Flight, so when the Flight (i.e. last remaining) character is thrown off a life is lost. This hints that previously, the order for character removal was different or random.
 * In robot boss battles, characters say that some cages open when you defeat all robots, and that you can use the item inside to get Eggman. The definition of "get" must be very vague here, because in robot boss battles, the goal is to just defeat all waves of robots.
 * When fighting Metal Madness, the Hint Orb at the right makes Team Rose say that the boss will shoot fire if you grab his right arm (the flame-shooting arm). Maybe this battle or the overall game mechanics were really different in the past, because you can't do anything even remotely close to grabbing in this game, and its right arm is nothing special.
 * Another empty voice clip file: in Mystic Mansion, when you touch the Hint Orb next to the trolley as Team Rose, if it's Amy turn to talk, she won't say anything. The subtitle "The trolley controls are the same as the bobsled. Make sure to dodge the ghosts." will still appear.