"Looks like things have gotten pretty ugly."
Custom music straight from Sonic Unleashed's Planetary Pieces soundtrack.

Aside from stealth, all tracks are featured in the Werehog stages.

Stealth: https://www.youtube.com/watch?v=Ke4zw4j9_k4
Control: https://www.youtube.com/watch?v=TNVcVnoOLlM
Anticipation: https://www.youtube.com/watch?v=ftyDZouqJ1Y
Assault: https://www.youtube.com/watch?v=tjyzdoC8ORs