Crash: On The Run! OST - Mr. Crumb

Pokémon HGSS Soundfont Theme- Vs. Latios And Latias (Fanmade)

I think rock is well suited for Dark pits theme. 

Boss Battle Theme from Act 2 of Sonic the Hedgehog 3


https://www.youtube.com/channel/UCNaT8cEIB4Di15z204iYxdQ