I think the battles should have been arranged differently. Since it is a crossover, I would think that the bad guys would be wanting to fight someone OTHER than the guys that have been kicking their asses for years, but... it's your series.
The only real complaint that I have is that the sound effects are too loud compared to the music. Either turn the volume up on the music, or turn down the effects volume. That was ear piercing even at minimal volume on my computer. fix that, and this will be just about perfect.