u/Few-Satisfaction-902

At some point between 2005-2010 I saw a random scene on TV and I always wondered what that was. It had an anime art style. Two characters were talking/fighting but mainly talking. The scene consisted mainly of front shots of the two characters. There were lots of skulls and bones in the background and pink/red/orange floor and walls. Now and then a character vaguely attacked but the only thing that seemingly did was shake the skull and bones behind them, to the extend that when I saw that scene as a kid I thought attacking/shaking the bones was their main goal here.