This is an animation I did for a school project. I only had about 45 minutes a day for around 20 days to work on it, so if you notice any problems, I was rushed. Also stop raining on my parade you nit-picker.
And yes, the castles transform into fighting robots. It's like some kind of bizzare transformers where things get really boring if the transformers ever go to their disguised-other-form. But I believe that castle transformers would make up for it's lack of action with some really terrific dialogue.