Hidden Conditions
To meet the hidden conditions, you must keep Vegeta's HP above 50% until you defeat Goku. Krillin and Gohan must be defeated as fast as you can and it's better to bring along strong support characters that will keep them busy. Once Goku appears, be aggressive in your attacks until he's KO'd. If Vegeta's not that badly hurt, Goku will be revived and use his Kaioken power to increase his stats. Don't hesitate to use a healing item when you need to.
Wont work, he isn't part of your party, only heals teammates u chose
How to heal vegeta
Use ALL energy capsule