Jonny Westside
S4mus Fiend
I don't play Marth but someone posted this on FB and I just would really appreciate answers from you all (in case this is character specific). Never seen this before, although I am aware of cancelling your roll momentum with a grab. It appears you can also cancel your momentum with a spot dodge?
http://gfycat.com/SlipperyNaughtyCheetah
http://gfycat.com/SlipperyNaughtyCheetah