According to Tatsunokivs Capcom as 10 mins of video.

Lovin' Capcom's 2.5D concept? You can catch a glimpse of that and a lot of other clips from this vid, featuring ten minutes of Tatsunoko vs. Capcom All-Stars.

Did Roll just get there via the Flutter? Awesome. Brings back memories. Same for Batsu too. I remember playing Mega Man Legends and Rival Schools around the same time. I'm starting to love that about these versus titles.