I'm glad they finally revealed that Jackie was Roshi, because biting my tongue on one of the most obvious twists in here was getting annoying. Anyway, I do like the decision to finally reveal it and Roshi's motivation right before the encounter with Goku in the finals, really helps elevate the stakes in the finals. And it was nice to see Roshi do an altruistic deed, as opposed to needing some "hotty" like every previous time he did something helpful.