The phrase “こいつは当時も嫌いだった” in Japanese means “I also hated this one back then!” It is referring to something, possibly a character or Pokemon from the video game series “Pocket Monsters Gold and Silver” (ポケットモンスター金銀). This phrase is often used to express dislike or disdain for something in the past.
あぁ〜
何度も「目の前が真っ暗になった」を〜