Despite Walmart having Gold Mario up online yesterday for more than a half hour, Walmart emailed several people that the Gold Mario is delayed until April 8th.
— Nintendo of America (@NintendoAmerica) March 3, 2015
Now Nintendo has stated that Walmart will be receiving much more amiibo than just what they have for preorder. However, according to a thread on reddit, some Walmarts will only have 4-6 amiibo in stock aside from the preorders.
This Gold Mario is part of the Super Mario Series and is posed as the regular Mario. It’s exclusive to Walmart retailers and originally set to release on March 20. Some people have already received cancellation emails (perhaps from ordering too many?) However, it appears that these emails may be dependent on when you pre-ordered your gold Mario amiibo.