Zone Boss¶
A boss-tier roll on wild spawns inside the Catching skill Type Zones. Every spawn has a 1 in 250 chance to come out as a boss, checked only after the ghost (1 in 80,000) and shiny (1 in 15,000) rolls have failed, so a Zone Boss is always its own thing.
When a spawn rolls boss, its tier uses the standard boss tier weighting (Common most likely, up through Ultimate). Wild spawns inside the Skill World's Easy and Medium Boss Zones roll boss at double the rate, 1 in 125.