This is the 6196th most frequent Japanese word.
キタァァァアアア
"キタァァァアアア" is an excited exclamation meaning "It's here!" or "Here it comes!" often used to express joy or anticipation.
In this context, it conveys an emotional reaction to a significant event, showcasing enthusiasm.
試合中、決定的なゴールがキタァァァアアア！
During the match, the decisive goal was scored!
Here, it emphasizes the excitement about a new announcement, especially one that has been highly anticipated.
新しいゲーム情報がネットで発表された。新しいキャラクターがキタァァァアアア！
New game information was revealed online. A new character has appeared!
Here, キタァァァアアア is used to express excitement and jubilation at the arrival of something eagerly anticipated.