Actually, a 4 player Kirby (co-op with mechanics like Super Star) would be a huge seller. Nowhere close to the 10 million category, but it'd probably do better than Kirby has ever done in the past. Super Star on the DS has done over 2.5m, it's still selling and that's without PAL data.
Nintendo just needs to pump out more local multiplayer games, that's the Wii's main strength. It's about time a console surpassed the N64 in local (the Wii isn't quite there yet, IMO)...
@Gamerace: I thought 3-5m was what many of us predicted? I just didn't realize Nintendo had far higher expectations of it, so I argued whether that could be considered a success or not. If I had known they wouldn't release anything big until 9 months later, I wouldn't have made this mistake...
