DRAGON BALL: Sparking! ZERO

For this you'll Start on the mission "Preparing for the World Tournament", have to beat Trunks while losing less than half a bar of health. If you play defensively and back step and guard until you can go into sparking mode, you'll be okay. You'll know you've done it correctly if after the fight you have a cutscene where Trunks says "That was amazing Dad!..." there doesn't seem to be any in fight indicators. Once you proceed to "Vageta's Wicked Heart" when given the choice, simply choose to resist the mind control and that will start the alternate scene