You were in Dreamland, and entered a large castle that was guarded by Waddle Dees. Some of them had Spears and were guard the castle, and they allowed you inside.

Atop the nearby throne, there was a penguin who wore regal robes. It was King Dedede, the self-proclaimed King of Dreamland! “Hi there! My name’s King Dedede! Did you need anything?” He asked you curiously, wondering why you were here.