What caused this? (Bad quality sorry)

[zackaryzac]

http://www.youtube.com/watch?v=uqrq6uw4rnM

A long time ago when I played on the 3ds this happened and I can't figure out what i did to make it happen.
If you can't tell what happened. Basically i was near the edge of the stage and after my counter I slid very far back.
Does anyone know what happened?

 

[Berserker.]

H0I im temmie!!

pls re-p0st dis in the faq tred of the shulk bodrds. tyty!!

reply pls so i can be sure 2 lock this thred :3

 

[valakmtnsmash4]

H0I im temmie!!

pls re-p0st dis in the faq tred of the shulk bodrds. tyty!!

reply pls so i can be sure 2 lock this thred :3

DONT LOCK IT XDXD

 

[Berserker.]

all I cans sez is dat dis hapenings sometems with counter

it isnt rly sum adv tech or anythin

so l0ck i gueSS