Acro

A boss that Kirby must fight in his game series.

Acro (Orca backwards) is a large killer whale. While normally peaceful, she is often victim to Dark Matter, who possesses her and causes her to become violent towards Kirby.

As with real orcas, Acro is mostly shiny black with a white underside and a white patches behind her eyes and dorsal fin. (You can tell she's female because the fin is short- male orca have very tall fins.) She also has a somewhat star-shaped patch of lighter skin on her nose.

While Acro is usually fought underwater, like Kine, she appears to have the ability to move out of water just fine.