In fact, the dance carpet is just a gamepad, but its shape is different ~ ~ (I tried to play other games with the dance carpet, but that one was super tired ~ ~ ~)
Ordinary dance carpet games in four directions, those keys are basically unnecessary ~ ~
X ○△□ actually comes from the symbol of the keys on the PS2 gamepad, and people have applied for a patent ~ ~ ~ so this is infringement ~ ~ ~