Unlock Location:
- Progress through the story until reaching the very south of the Fadefields area.
- You will encounter Splashzone, the first major campaign boss after the tutorial.
Farm Method:
- Defeat Splashzone in the south of Fadefields.
- After completing the story mission, return to his arena.
- Use the Encore Machine nearby to reset the fight.
- Repeatedly defeat Splashzone until
Firewerks drops.