Anyone here try Max 300 Heavy before?

I am not familar with "MAX 300" at all.

It is an infamous boss song introduced in DDR MAX:DDR 6thMIX. If you manage to unlock it as an Extra Stage, you have to do it on 1x scroll speed with vivid noteskin. If you manage to beat that, there's still "One More Extra Stage."

It returned in DDR MAX 2: DDR 7thMIX, DDR EXTREME, DRR EXTREME 2, and DDR A

omg i meant ddr not drr