Mega Man 7/Wily Stage 4

All Original 8 bosses, in these locations: [F] [SL] [J] [C] [T] [SP] [SH][B] Freezeman Slashman Junkman	 Cloudman Turboman Springman Shademan Burstman

After defeating them, a teleporter will appear allowing you to travel to Wily himself.