Fun Fact: For the longest time, a lot of Bemani Rhythm games were Playstation exclusives. Specifically with DDR, the arcade versions ran on System573 (
which is essentially a PS1 in an arcade board) and then later on the Bemani Python 2 (
which is essentially a PS2 in an arcade board). It's why those games were so piss easy to port over to the PS1 and PS2 respectively. Once DDR ventured onto other systems, they had to build those games from the ground up to make them functional on said systems. For example, DDR Mario Mix uses the Mario Party 5 engine. That game was developed by Hudson Soft, which would also wind up doing the 360 Universe games.