"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