How do I complete a Finishing Move?
Solution 1:
This goal can be accomplished with the pillar of sentai moves: Teamwork!
You need to have all five of your squad ready to act, so this is a full turn move. Move four of them next to the boss (diagonals are okay), and hit the Teamwork star. They'll get a little yellow box under them, and they'll do a little bit of a pose.
Then, move your last team member next to the boss and just attack as usual. With four members waiting in Teamwork, you'll do a huge Finishing Move!
One warning: If your Finishing Move doesn't actually finish the boss, you'll lose some audience for using it too soon. So be careful!