30-Day Video Game Music Challenge (Super Hard Mode)
Day 15: Boss battle music
From Battle Garegga (Saturn, 1998)

If the boss kills you, just say you took the death on purpose to manage your rank.

If this version is too “arcade” to count as Saturn music, use Christmas NiGHTS’s boss music instead.

Source: YouTube, challenge by OverClocked ReMix I think?, via NintendoCapriSun