Serious Steel

• 02:43
  横山 克 Serious Steel [MashleOST20][AnimeNewMusic]
• 02:42
  横山 克 Serious Steel (Instrumental Version) [MashleOST22][AnimeNewMusic]
• 02:42
  横山 克 Serious Steel (Instrumental Version)
• 02:43
  Masaru Yokoyama Serious Steel
• 02:42
  Masaru Yokoyama Serious Steel (Instrumental Version)
• 04:10
  L. Pot Extended Remix Serious Steel [Mashle OST]
• 02:43
  Masaru Yokoyama - Topic Serious Steel
• 01:56
  Rocco808 Serious Steel
• 02:43
  Masaru Yokoyama Serious steel [DJ3ster]
• 04:54
  Кошмар в марсианском аду Serious Steel tarkhan song by W. Martynenko
• 02:10
  Moira Vale Steel Serious