If you're an amiibo collector, watch out. Taking another page from the Skylanders playbook, it looks like Nintendo will be releasing a pair of as-yet-unannounced Mario amiibo figures with special gold and silver paint jobs.

The new metallic Marios are based on the upcoming Mario resculpt that's hitting alongside Mario Party 10.

Since Nintendo hasn't officially announced the gold and silver edition Mario amiibo, we don't have too many details. Their existence was discovered in a pair of Consumer Product Safety Improvement Act (CPSIA) certificates posted to Nintendo's website. They have since been removed. We've reached out to Nintendo for comment and clarification on how these Mario amiibo figures will be distributed, either at retail, through a giveaway, an exclusive or some other method, and will update if the company responds.

The introduction of limited edition amiibo — if that's what these actually are — may provide new headaches for Nintendo fans looking to score a complete set of amiibo. Some of those figures, particularly less popular characters like the Animal Crossing Villager, Wii Fit Trainer and Marth, have been in shorter supply than the likes of Mario, Pikachu and Yoshi. With some amiibo locked down as retailer exclusives and a secondary market pushing prices of the $12.99 toys up, amiibo completionists now have a little more to worry about.

The Super Mario line of amiibo is scheduled to launch March 20 and includes Mario, Luigi, Peach, Bowser, Yoshi and Toad. Pre-orders for the new figures went live on Amazon last week, though it appears the online retailer is no longer accepting pre-orders. Nintendo will release another batch of Super Smash Bros.-themed amiibo, which include Robin, Lucina, Pac-Man, Wario, Ness and Charizard, this spring.