I'll keep it one game per series

Chrono Trigger: Wind Scene
Suikoden II: Reminiscence
FF6: Dancing Mad
Castlevania: Symphony of the Night: Dracula's Castle
Donkey Kong Country 2: Stickerbrush Symphony
The World Ends With You: Transformation
Mega Man 2: Bubbleman's Stage Theme (PAL Version)
Super Mario World: Credits
Persona 3: Battle Theme