Not as fun as Arkham Asylum, because there's so few bosses, and the ones that do exist are really restrictive.

Music
Here We Are - Undertale
Pepperman Strikes - Pizza Tower
Shankton State Pen - The Escapists
Amalgam - Undertale
Crisis City Act 1 - Sonic Generations
Punch Bowl - Donkey Kong Country: Tropical Freeze
Final Showdown - Bully
Transformation - The World Ends With You