It could be better...
It is good thing that you didn't use sprites..
But plot and characters are just used too much.. there is all ready way too many of these mario movies.. Good thing is that You made Mario & Luigi cowards.. what.. it was little bit funny..
But music SHOULD be lot more louder.. i could berely hear it..
Perhaps with Original Plot this wouldn't suck so badly.. and original characters too..
But since there is going to final battle.. Hero should lose.. Why? Well do you see things like that? No it is mainly like this.. Hero gets his/hers butt kicked.. then he/she comes back to save the day.. and wins.. that sucks.. it is used way too much..
So atleast think about it.. Hero fights.. nothing what he/she does is enough.. and then bad guys win..