According to VGChartz, Black Ace and Red Joker collectively moved 30,000 units on its first day on sale. That's pretty good, but how does it compare to the previous games?
SSR1 sold around 93,000 on its first day while SSR2 sold 44,000. Compare those numbers to SSR3...ouch.
One thing we have to take into consideration is the shape of Japan's economy at the moment. Like the US, Japan is in a bit of a sticky situation. Japanese consumers are holding back on their purchases to save money in case the situation grows worse. Thus, there has been a steady decline in video game sales.
We'll see how things look in a week.