List of unused and removed content of Super Smash Flash 2

The following beta elements consist of those that were originally planned to be in Super Smash Flash 2, as well as any elements shown in a Super Smash Flash 2 Demo that were removed:

Planned content

 * Adventure Mode: The Flash Of Shadows was planned to have a different storyline.
 * Rock Lee, Vegeta, Robo Ninja, Renji, Sasuke, Blade, Blue, Azrael, and Spikeman were planned to be playable characters in Super Smash Flash 2.
 * Mega Man X was planned to return using his Biometal form from Mega Man ZX but was replaced by the original Mega Man.
 * Light Yagami was planned to have a completely different effect before his debut in demo v0.7.
 * Battle Cards were confirmed to appear in-game but were removed as the developers found them too similar to Assist Trophies.
 * Fūton: Rasenshuriken was confirmed to be Naruto's side special move, but was later added as the full-charged variation of Rasengan instead of the Odama Rasengan.
 * Rasengan Smash was confirmed to be Naruto's down special move.
 * Tengu Blade was confirmed to be Mega Man's side special move.
 * F.L.U.D.D. Tornado was planned to be Mario's Down special move in demo v0.4.
 * Chu2 Bomb was confirmed to be Tails' side special move

Removed content

 * Stunning Slash was Ichigo's down special move up until demo v0.2a.
 * Mario's F.L.U.D.D. was removed in demo v0.2b.
 * Bankai Ichigo's down special move was a weaker Kuroi Getsuga until demo v0.2b, where it was replaced with Multislash, which up until that point was his neutral aerial.
 * Falcon's Crest had a completely different effect until demo v0.2b, and it was changed again in v0.8a.
 * Fire Mario was Mario's Final Smash up until Version 0.9b where it was replaced with a revamped Mario Finale.
 * Test Stage 1 and Test Stage 2 were removed in demo v0.5a and both got replaced by Waiting Room.
 * Heat Shield and Fire Mario Eruption were Fire Mario's side and down special moves respectively until demo v0.5a.
 * Beast replaced Sonic Thrust as Lloyd's side special move in demo v0.5a only for Sonic Thrust to be brought back in demo v0.6 and Beast to be relocated to Lloyd's forward Smash.
 * Mega Man's Rolling Cutter was replaced with Super Arm in demo v0.6.
 * Rasengan Smash was Naruto's down smash attack, but was removed in demo v0.5b.
 * Guardian was Lloyd's down special move but was replaced with Grave Blade in demo v0.8a.
 * Mushroom Kingdom II was replaced with Mushroom Kingdom III since v0.8a.
 * Ōdama Rasengan was the fully-charged version of Naruto's Rasengan but was removed in demo v0.8a.
 * Shuriken was Naruto's side special move but was removed in demo v0.8a.
 * Waiting Room, Rainbow Route, Castle Wily, and Yoshi's Island 64 were replaced by Nintendo 3DS, Mirror Chamber, Skull Fortress, and Yoshi's Story respectively in demo v0.9a.
 * Several of Mega Man's regular attacks were either relocated or completely replaced in between various demos.
 * Lloyd had a set of techniques called "Linked Artes" in v0.8. These techniques involve Lloyd instantly cancelling one move into another in rapid succession. They got removed in v0.9 as they were found unnecessary. However, he along with every other character is able to chain attacks together in SSF2's Turbo Mode.

Altered content

 * 's original Super Mario World sprites were recolored to match the style of Super Smash Bros. Brawl in Demo version 0.5a.
 * 's sprites were changed from rips from the Game Boy Advance and Nintendo DS games to Brawl-styled sprites from Kirby Super Star Ultra.
 * and were given completely custom sprites for Demo version 0.9b
 * was given a Brawl-styled color scheme in a patch for Demo version 0.9a. and  received the same treatment in 0.9b.
 * has received multiple sprite changes from demo to demo.
 * Hueco Mundo and Twilight Town were completely reworked and redesigned in demo v0.9a.
 * Tower of Salvation, Clock Town, Central Highway,, Fourside, and were re-sprited in demo v0.9b.