Go
The go radical and the go kanji are exactly the same!
こう, ぎょう
い, おこな, ゆ
None
"Go!" someone is telling you. "Go! Go! Go!" That person is こういち. He is holding his finger out, and pointing at your WaniKani reviews. "Go! Go!" Then, he over-enunciates the word "go" by saying "GYOU!!" (ぎょう).