Steven Universe: Unleash the Light
33 Achievements
0-0h
PS4
Jam With Your Old Man
Have a jam session with Steven and Greg
10.2%
How to unlock the Jam With Your Old Man achievement in Steven Universe: Unleash the Light - Definitive Guide
Well, I've never seen anyone describe this so, presuming it isn't obvious, this unlocks when you have Steven playing his ukulele and Greg is playing his guitar at the same time. Unlock Steven's ukulele techniques by leveling up and investing enough star points to get to the bottom of one of his skill tree branches, have the Universes play together and there you go!