the vid shows the dash fakeout using falcon, but sonic can do it too.
the vid is found here: http://www.youtube.com/watch?v=lOLL_xJ_DjA
How to perform this:
1 jump (SH/full jump, or even + second jump, doesn't matter how you get in the air.)
2 DI in to the directon you don't want to dash
3 as you land, your character will slide a little, wich is normal.
4 if you buffer a dash before phase 3, so it comes out during phase 3, the dash's range will be alot less.
Sonic almost dashes in place using this ^_^

the vid is found here: http://www.youtube.com/watch?v=lOLL_xJ_DjA
How to perform this:
1 jump (SH/full jump, or even + second jump, doesn't matter how you get in the air.)
2 DI in to the directon you don't want to dash
3 as you land, your character will slide a little, wich is normal.
4 if you buffer a dash before phase 3, so it comes out during phase 3, the dash's range will be alot less.
Sonic almost dashes in place using this ^_^