There are three heads Aya has to deal with, each with its own HP but the same set of attacks. The first is a near-unavoidable giant shock wave that cuts Aya's HP in half, the second a lunging bite when Aya is in range, and finally an energy blast that will stretch across most the room. Aya will mostly be on her guard the entire battle, the best time to attack when Sheeva goes to heal one of it's heads for 100 HP each or just after avoiding Sheeva's attacks.
|Aya Brea - Daniel Dollis - Kunihiko Maeda - Melissa Pearce - Mitochondria Eve|
Maya Brea - Ben Dollis - Lorraine Dollis - Hans Klamp - Douglas Baker - Torres Owens - Wayne Garcia
|Armadillos - Bacterium - Bats - Bears - Cats - Centipedes - Chameleons - Crows - Dogmen - Flymen - Frogs- King Bacterium - Mixedmen - Moles - Monkeys - Parrots - Plants - Pterodactyls - Rats - Ratmen - Spiders - Scorpions - Squirrel - Snakes - Treasureboxes - Troodons|
|Alligators - Bees - Cockroaches - Craps - Dogmen EX - Eve - Giantworms - Kerberos - Spiderwoman - Triceratops - T-Rex - Ultimate Being|
|American Museum of Natural History - Carnegie Hall - Central Park - Chinatown - Chrysler Building - N.Y.P.D. - Soho - St. Francis Hospital - Subway - Warehouse|
|Weapons - Soundtrack|