Fighting Type.
As the challenger enters,
http://www.youtube.com/watch?v=aJO_QZP4SYQ&list=PL17310690302C5675 starts playing. He must then go over a circuit of training machinery (treadmills, bikes, hanging handles...) to arrive to the gym leader. Once he gets to me, he enters a ring of battle.
http://www.youtube.com/watch?v=QAV-SzOZns0 starts playing.
Hariyama
Mienshao
Machamp
Scrafty
Poliwrath
Blaziken