I am getting frustrated with Hiro appearing in Friendship Battles, because he permastunns the entire group and there is no defense against that!
Kida’s crystal blast would allow her to defeat this entire group or at least soften them up a lot, if only she was allowed to use it!
She spent the entire battle being stunned/inactive.
Now keep in mind Baymax is my most powerful character in terms of upgrades and look at his status icon.
So I think Hiro should never be allowed as an opponent in Friendship Battles, because of the roadblock to mission chain progression he causes.