The Wii U eShop offers a small discount on Virtual Console games that players have already downloaded on the Wii Shop Channel. However, this feature is missing on the newly released port of Mario Party 2. The N64 classic has been available on the Wii Virtual Console since 2010, but now its Wii U release refuses to honour customers who have already bought the game once before. It seems unlikely Nintendo would be ending the upgrade scheme, probably making this a mistake on their part. It’s a good idea to wait before re-downloading the game, a discount likely coming in the next few days.