Johan M – Sandopolis Zone Act 1 (Sonic & Knuckles Metal Cover) Jun 8, 2015 Cover me, Cover Sandopolis Zone Act 1, Cover Sonic & Knuckles, Happy, Sonic & Knuckles OST, A Metal cover of a stage, in the game „Sonic & Knuckles“. Sandopolis Zone Act 1 Enjoy! Like 0 Thanks! You've already liked this « Sonic Green Hill Zone (Act 1) – Piano Cover » Sonic The Hedgehog 3 – Angel Island Zone (Act 1) (Cover)