PlayStation 3 Compatibility
Because the Beatmania controller uses the standard PS2 controller connection, it was not originally compatible with the PlayStation 3. The release of PS3 firmware 1.70 and the Pelican PS3-to-PS2 adapter (which has also been said to work with Guitar Hero controllers and Dance Dance Revolution dance pads) fixes this issue. Unfortunately, the adapter is reported by some to introduce additional input processing time ("lag") that may make playing more difficult for players.
Read more about this topic: Beatmania (2006 video game)