In Boss Battles, if I were to beat Intense with my brother, would it count as beating it? Or is the only way to actually get the prize or whatever one player mode?
Yes, it actually counts! Getting (Reveals prize.)[spoiler]the Galleom Tank[/spoiler] can be done with Single or Co-op if I'm correct, which makes it SO much easier.
From what I've seen, I believe that when you go at it in co-op, the bosses have more hp. I'm not sure though.
It would be really unfair if they do have more HP, because if one person dies, you have to quit, and unless your friend is really good... :-\
Yes, their HP gets a huge boost. It's actually easier to do it with 1 person and have your friend do it or something.