PS2 DDR supported Now!!!
GameCube JoyBox is a PSX/PSX2 compatible controller adapter for GC.
GC games that support rumble function will make PSX,D-Shock controllers rumble without extra accessories.
Make sure the GC console is turned off.
Insert the GC plug of the GameCube JoyBox adapter into the GC console.
Insert any PSX/PSX2 controller into the GameCube Joy Box.
Turn on the GC console, and the PSX/PSX2 controller will be ready to use.
Game Cube is the trademark of Nitendo, but not an official Nitendo Products.