Unused Textures
Unused Characters
Unused Music
Unused Sound Effects
Beta Features
100

Sonic

He has an unused texture that was used for beta series where he has a sonic cd texture

100

Hatterene

This character was cut due to debugged moves found in it so they replaced Hatterene with Athena for the dlc coming

100

Saffron City

This music was switched because the song was very depressing so they changed it to something happy. The unused music is now used for the Fountain of Manorra  

100

Sound of something lighting up

This was used for the Fountain of Manorra when lighting a candle near it

100

Unused Extra named "Gems Collection"

This was used in the beta version of the game when you press the button it shows how much Chaos and Sol Emeralds but it was replaced by Chaos Emeralds and Sol emeralds were removed..

200

Mario 

Mario has a unused moustache texture which looked very stupid so they replaced it with a much better moustache

200

Corviknight

This character was cut same as for Hatterene this bird was replaced by Terry(Yup the characters were not Terry or Athena yet)

200

Sylph Corporation

This song was switched to a more epic version. The unused music is now used for The Battlefield

200

Sound of door creak

This door creak was used for Will's mansion 
200

Tickets

In the series game, there was a unused tickets selection which shows how many tickets you collected in your adventure but somehow changed to Collection

300

Mr Legends

Mr legends had a unused feather left when he used his fire attack and he has a feather near his head so they removed it cause it meant something really bad

300
Froakie and Frogadier 

Froakie and Frogadier were cut and replaced by Popplio and Brionne

300

Indigo Plateau

This theme was switched to a type of challenge road. This unused theme is now used for the Elite Six rooms

300

Sound of someone saying Yeah!

This sound was used when you get a 1-UP 

300

Character Stats Editor

This feature was used to edit the stats of a character but was removed due to people cheating online making peoples power levels 100 and was never added again
400

Jared Valdez(A hacker in the series)

This person has a unused hack texture with random numbers but they made him into a different character instead

400

Red,Blue,Green

These characters were meant to be the main characters of series 6 but they were cut due to a DMCA and replaced by Jill, Eyozen, and Urmies

400

Gym 1,5,8.

Those themes were changed to a cooler theme. The unused music is now used for battling Boss Rush

400

A DKC2 sound

This was the game over used when losing to something and it was replaced but then it came back 

400

Classic Mode

Classic Mode was a feature changed to Adventure Mode due to copyright of smash bros

500

SCP 7289

This SCP was named Bluewill the fish but someone else was named that(will be changed soon) anyways he had a unused mouth but it was cut to a more cool mouth 

500

Ryo Sakazaki

This character was scrapped and replaced by Will

500

Challenge Road

The theme was changed to a more type of cool beat. This unused theme is now used for Splatter house 3rd Floor

500

Sound of a fan

This was the fan used in the SCP Foundation but was somehow removed for no reason...

500

Sound Test

Sound Test was changed to Jukebox instead because of sonic copyright