Mashup of "Cave Story - Wind Fortress" YTPMVs.

Sources:
"Escape the Wind Fortress!" by dpritch16 http://youtu.be/DwhYQFkH-kg
"Otonokizaka Fortress" by Nabenamiku http://youtu.be/nY2NZ7Mouro
"Barnaby's Wind Fortress" by Tre http://youtu.be/HZ0B6UMFN6w
"Wind Fortress 2" by TheInnkyara4 http://youtu.be/uboYTbatEhY