Utsubobo Seamount

Utsubobo Seamount is the fourth stage in Primeval Currents.

Battleground

 * Kory and B.B.Bunny are sent out 6.6 seconds into the battle.
 * B.B.Bunnies spawn at a mild rate of one every 3.3~10 seconds.
 * Oldhorn will join in after 26.6 seconds.
 * Another Kory spawns after 80 seconds.
 * Another Oldhorn spawns after 106.6 seconds.
 * The last threatening enemy in the stage, Berserkory, will appear after 146.6 seconds.

Reference

 * https://battlecats-db.com/stage/s13003-03.html