For single player you can use a gamecube controller, but if you want 2, 3 or 4 players, each one has to have a Game Boy Advance and a GBA-GC cable...
The game is great fun if your playing with on player...
Okay I'm happy it is the last day of school and at the end of June (maybe) I gonna move to Mayasia(yes the country)new start there but I hope I can still get SS