Obtained: Speak with Dende at Kami’s Lookout during the post game as Piccolo
Objective: Take Dende up on his offer
Head to Kami’s Lookout and speak with Dende who tells Piccolo to live a little. Take him up on the offer by heading to Goku’s House and speaking with Gohan. Next head towards the sub story maker east of Goku’s House to find him in the mountains. Approach him to throw down the gauntlet! Beat Goku in battle to complete the story.