Spirit Keys are required to summon the Goku boss on Blue Planet Island in Sailor Piece. This item has a low drop rate and hence, you might feel confused about where to get it. Here's how to get and use Spirit Keys in Sailor Piece Roblox.

How to Get Spirit Keys in Sailor Piece

Travel to Blue Planet island after unlocking access to it. Use any teleporter on the map and scroll to find Blue Planet island. This island is the only location where Spirit Keys drop. Farm NPCs on Blue Planet island to get Spirit Key drops. Defeat the enemies spawning on the island repeatedly until Spirit Keys drop from them. The keys have a random drop rate, so expect to kill multiple NPCs before getting drops.

The drop rate for Spirit Keys is not confirmed. Based on similar boss key items in Sailor Piece, expect drops to be uncommon. Some farming sessions might yield keys quickly while others require extended grinding. Use your strongest build while farming Spirit Keys. Higher damage output means faster NPC kills, which leads to more attempts at the drop rate per hour. Equip your best sword or fighting style for efficient farming.

Stack multiple Spirit Keys before starting boss runs. Collect several keys in one farming session so you can fight the Goku boss multiple times without returning to farm between attempts.

How to Use Spirit Keys in Sailor Piece

Find the Spirit Warrior Boss NPC after collecting Spirit Keys. This NPC handles spawning the Goku boss. Talk to the boss summoner NPC and select the option to spawn the Goku boss. Hand over the Spirit Key to the NPC (amount depends on the difficulty you choose). The Goku boss spawns immediately in the boss arena.

Each Spirit Key allows you to summon the Goku boss one time. If you want to farm the boss multiple times, bring several Spirit Keys with you before starting.

The Goku boss drops title and accessory rewards when defeated. Farm the boss repeatedly to collect all available drops. For more Sailor Piece guides check out our wiki.