Beat Elite 4 - Done
Capture 50 Flags - Done
Complete Pokédex - Up to almost 400, I'll do it eventually.
Battle Tower - Managed 93, currently on 56 on my 9th attempt to get passed 100.
Contest - I hate them so haven't done it yet, borrowed a friends Pokémon but I need ot get more accessories before I can have a hope of winning. I want that Black card though so I'll manage it soon I hope.
Four, working on fifth. But my Gyrados can't get enough hearts in the visual part of the Master Rank beaty contest. Dang. Off to the help thread to ask where to get more accessories aside from at the Veilstone Massage.