Mamoru Shiroishi (城石マモル, Shiroishi Mamoru) is a character that only appears in the Beyblade: Metal Fusion - Battle Fortress video game. His Beyblade is Quake Shielzam DF145D.
He was one of Kenta's friends back in second grade but moved away before they entered fourth.
Beyblade
- Quake Shielzam DF145D: Mamoru's Beyblade in Beyblade: Metal Fusion - Battle Fortress.