Well I switched my z soul to the one that makes picollos attacks stonger, put on light grenade instead of kamehaha, and put on instant transmission. I'm not great with using the instant transmission thing, but I pretty much just spammed them with light grenade as super saiyan 1 while trunks was alive, then flew backwards spamming jump and used light grenade any chance I got lol.

Haha that'll work!