[quote=@Drifting Pollen]
Up to you. The main focus of the thread is the fights, but if you want to add in some behind-the-scenes stuff in your posts then why not?

In fact, maybe rather than waves coming out to attack us, our villains could invade the castle, attacking one section at a time. So using your example, they could burst into a kitchen and interrupt the heroes baking there. This would mean different terrain for every wave, which could be fun.
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It will take only a very minor retcon to assume that more then the knights have already entered the castle by now and that the castle is still functioning pretty well for being previously abandoned. Maybe about half of the heroes are inside different rooms. After taking the castle there could be some tower defense and then the castle could be in ruins for the final battle.

To add insult to injury the villains could eat the cake after being victorious, and it was one of the best cakes ever.