You battled two trainers and started off in the town with Dragon Spiral Tower. Deerling, Starter (random), and Chillarmy(??)
Yeah, it sucked. Basically the game was hard wired into a modified DSlite, so there were no cartridges in those DSes. It was hardly worth the wait.
If you beat those two trainers and talked to the professor, your game reset. If you whited out, your game reset. If you went past 15 minutes of playing, your game reset. No buildings were accessible (NPCs blocked them off). Totally sucked.
Now that the GameStop Celebi is the exact same Wonder Card, it makes the entire event suck even more. The only good thing about the whole event was the free spins (which took an hour to do, even though the prizes were pretty bad) and the things you can buy.