Seahorse Siren

Seahorse Siren is the fifth stage in Barking Bay.

Battleground
This level is just Sir Rel spam. In total, there are 15 waves of Sir Rels with 8 Sir Rels each. The waves spawn around 10, 40, 80, 120 and 160 seconds. After 66.7 seconds, an Oldhorn will come out, and after 100 seconds, Sir Rels independent of the huge waves will begin spawning in 10~20-second intervals.

Reference

 * http://battlecats-db.com/stage/s13004.html