Wich features should have a DDR theme?

Hello, I wanna create a custom theme inspired in DDR, and I wanna know which features from official DDR games or from other games would be nice to have? I don't know where to put this post initially because I don't know if it could fit into simulation category

There is no limit of ideas, or anything, is just a brainstorm for me, but please avoid spamming. Thanks for your attention.