Castle in the Sky Ascension

Legend tells of a castle hidden amongst the clouds. Looks like you've found it. Journey through the mysterious Castle Centuria finding keys on the way to unlock new areas. Can you find your way to the top of all four towers? This is your ultimate goal, and there's dozens of ways to do it. Good luck. Portraits by Apocalyptical. Special thanks to BrokenBone for teaching me how to save data off-site.