He's not dancing, He's in the "zone" that's why it feels like he's floating and sliding like he's one with the machine. In contrast, the other dude looks stiff & awkward. One guy was _moved_ by the music, the other _moved_ because of the music. HUGE difference.
What I found amusing was people used ddr for exercise and coordination training. Then added more of a "freestyle" version like here where more did spins, jumps, and pressed the buttons more like expert original ddr players. Also being dancers like this made you tge most popular players in arcades.
I searched this video up because I remember seeing a dance game kinda like this years ago. But idk the name of that specific dance game. But oh well! It’s kinda similar to this so I guess I shouldn’t complain