Nintendo has the option to release Amiibo "in card form" in place of any discontinued figures, Shigeru Miyamoto has said.
The cards would feature the same functionality as the figures and allow developers to take advantage of discontinued Amiibo characters in future games.
"We'll continue to make future games that will have functionality with the "amiibo" characters as an additional present for people who bought them," Miyamoto told ABC. "Beyond that, we're looking at how we can use the "amiibo" functionality in the future, including cards and whatnot."
"We're not making promises for certain figures," he added when asked whether Nintendo would continue including support for discontinued Amiibo in future games, "but the way 'amiibo' is designed is that certain games can have 'amiibo' specifically for that game. Other games can take advantage of past 'amiibo' that developers want to make their game compatible with.
"In the future, we have the option, if certain 'amiibo' figures are no longer available in stores, to release an 'amiibo' in card form with the same functionality."
It was reported earlier this month that Marth, Villager and Wii Fit Trainer Amiibos had been discontinued, prompting fans to rush out and buy them before they sold out. They since appear to have been restocked at certain retailers, however, prompting confusion over whether they had actually been discontinued.
A second wave of Amiibo, which includes Zelda, Diddy Kong, Captain Falcon and Luigi, go on sale today.