Quick answer: To unlock Lineage Piece Goku, start the Ki Shard NPC’s quest in Legends Arena: deal 2 million damage with any fruit, use Light skills 150 times, and defeat 50 Hard or Extreme bosses using Light fruit. Collect Ki Shards from chests, use them to summon and farm Goku, then roll the Saiyan race in Lineage Town and claim Goku from the unlock NPC once eligible. For mastery, complete Goku’s M1-use requirement, deal 50 million damage with Goku, and defeat Super Saiyan Goku through the quest on Namek before returning to the mastery NPC.
The Lineage Piece Goku unlock has two separate grinds: getting the base spec and completing its mastery questline. Light fruit handles the early requirements, while the Saiyan race and Goku boss farm come before claiming the spec. I’d work through these in order rather than jumping straight into boss farming, especially because the Light boss objective depends on how you finish each fight.
Start the Lineage Piece Goku quest
Head to Legends Arena and interact with the Ki Shard NPC to accept the quest. Your first objective is to deal 2 million damage using any fruit, so spawn a boss and use fruit attacks to build up the required damage.
This opening task isn’t restricted to Light. I’d use whichever fruit makes the damage requirement easiest, then switch to Light for the next objective: use Light skills 150 times. Treat these as separate steps and finish the damage task before working through the skill uses.
- Accept the quest from the Ki Shard NPC in Legends Arena.
- Deal 2 million damage with any fruit.
- Use Light skills 150 times for the following objective.
Don’t confuse the Light skill-use task with the boss-kill task that follows. Casting skills gets you through this stage; defeating bosses is the next milestone.
Finish 50 bosses with Light fruit
Next, defeat 50 Hard or Extreme bosses using Light fruit. The difficulty requirement matters here: focus your farming on those two boss categories rather than spending time on easier fights.
You don’t have to chip away at every boss exclusively with Light. The faster approach is to deal most of the damage with a powerful spec, then switch to Light fruit to finish the boss. I’d make the switch before the boss is nearly dead so an extra spec attack doesn’t accidentally take the kill.
Heads up: Finish each qualifying boss with Light fruit. Using your stronger spec for the final hit defeats the purpose of this shortcut.
Repeat that weaken-and-finish loop until you’ve completed all 50 required defeats. This is the main time-saver in the early unlock chain, particularly if your usual spec deals damage much faster than your fruit.
Collect Ki Shards and farm Goku
After the Light objectives, collect Ki Shards by opening chests. These shards are what you need for the Goku boss summon, so the next part of the route shifts from boss objectives to chest farming.
Once you’ve collected enough Ki Shards, summon Goku and farm the boss. Check the summon requirement before committing to another chest run; your immediate goal is enough shards to keep the Goku farming loop moving.
I’d separate this into two clear jobs: collect shards, then spend them on Goku summons. Don’t assume that one boss defeat completes the entire unlock. Finish the necessary boss farming and check your eligibility with the Goku unlock NPC before moving on.
Roll Saiyan and claim Goku
Once you’ve handled the Goku boss farm, head to Lineage Town and roll for the Saiyan race. Saiyan is part of the unlock route, so the earlier fruit objectives and boss farming aren’t the whole process.
After obtaining Saiyan, interact with the Goku unlock NPC to claim the spec. If you aren’t eligible yet, check the outstanding requirements rather than continuing to reroll after you’ve already landed Saiyan.
Claiming Goku completes the base unlock, not mastery. I’d move straight into the mastery questline next so your upcoming Goku usage contributes to the next progression stage.
Complete Goku’s mastery usage and damage tasks
Find the mastery NPC and interact to begin Goku’s mastery questline. The first objective requires repeated uses of Goku’s M1 move, so follow the M1-use target given by the quest rather than substituting skill casts.
This step is repetitive rather than mechanically difficult. I’d get the M1 requirement out of the way first, then focus on the next objective: dealing 50 million damage using Goku. The earlier trick of doing most of your damage with another spec isn’t useful for this damage requirement, because this stage specifically asks for Goku damage.
- Start the quest through the mastery NPC.
- Complete the required Goku M1 uses.
- Deal 50 million damage with Goku.
Keep the two objectives distinct. Basic-attack usage is the first milestone; the large damage total is the next one.
Defeat Super Saiyan Goku on Namek
The final mastery task takes you to Namek to defeat Super Saiyan Goku. Interact with the quest NPC there and start the quest before fighting him. Don’t skip the quest interaction just because you’ve already reached the boss area.
Unlike the preceding 50 million damage objective, this fight can be completed with another spec. I’d use your strongest comfortable option if base Goku makes the fight slower or harder than it needs to be; this is a boss-defeat step, not another Goku-only damage grind.
After completing the questline, return to the mastery NPC and interact again to finish the process. Beating Super Saiyan Goku is the combat milestone, but that final NPC interaction is still part of obtaining mastery.
What to Do Next
Once you’ve returned to the mastery NPC, test Goku’s mastered moveset, including Spirit Bomb, before settling into longer farming sessions. I’d judge the spec by how it feels in your boss fights rather than by the size or detail of its effects alone.
If you’re still working toward the base unlock, keep your farming targeted: use chests for Ki Shards, spend those shards on Goku summons, and finish any outstanding unlock requirements. Once you’ve claimed Goku, your next priority is the mastery questline rather than more untargeted chest runs.
For the mastery grind, use Goku whenever the objective explicitly requires his M1s or damage. Save the option of switching to another powerful spec for the final Super Saiyan Goku fight. That distinction keeps you from spending a long farming session on attacks that don’t advance the task you’re trying to finish.
