The difference between Canon of Creation and Vengeance in Shin Megami Tensei V Vengeance and where to start

http://www.youtube.com/watch?v=xvudMu-5kIU

Villager from Super smash bros confirmed!!!!!!

https://www.youtube.com/watch?v=aX2KNyaoNV4

MEGA MAN IS CONFIRMED!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! *EXPLODES*!!!!!!!!!!!!

I'm just so freaking happy right now.