Damn. I can't even finish watching that. And I thought Rockman XOver was mindless. At least there you get to jump 'n shoot.
I still think the premise of having a big ass group of characters is an interesting one. This, however, is the very definition of a missed opportunity. With at least the very minimum of decision making added to this, for example having the characters use different abilities depending on the order in which they are chosen, would make this far more interesting.
I wholeheartedly believe the fan community could make a better version of this.