User blog comment:TsurugiFan16/Most Strongest Player V4 Debate Era/@comment-4928091-20120712175030/@comment-4091102-20120712180818

Hissatsu Evolution

Quote: "

Inazuma Eleven GO: "
 * Kai to Shin Evolution: Normal → Kai (改, lit. "Remastered") → Shin (真, lit. "True") → Tchyo (超, lit "Super"), Zetsu (絶, lit, "Absolute") or Goku (極, lit "Very")
 * V2-3 Evolution: Normal → V2 → V3 → V4 → A, S or Z
 * G Evolution: Normal → G2 → G3 → G4 → GX

That's why.^^