"On Sunday, we're launching our Great Big Christmas Sale (Dec. 4 thru 10) and the catalog, which is arriving in homes in the coming days, features Hatchimals and NES," a spokeswoman with Toys R Us told CNBC. "Our stores are receiving shipments of both holiday must-haves to support and we expect that when stores open at 8 a.m., they will sell very quickly."

Employees at a Santa Cruz location leaked a video on Instagram Wednesday, posting that the store would have a limited stock of the hot toy on Dec. 4. Select stores are slated to sell Hatchimals for $59.99 each, however, customers are limited to one toy per person, according to Black Friday Ads, a deal tracking website.

In addition, Black Friday Ads reported that the Nintendo Classic Edition Mini NES may also surface in Toys R Us stores this weekend. Like the Hatchimals, the Nintendo game console is sold out at a number of retailers and has been highly sought after by consumers.

"I also would not be surprised to see another big sales event for toys on Green Monday (Dec. 12), which may not offer Hatchimals or Mini NES, but will have similar pricing on toys that were part of Black Friday Ads," Brent Shelton, an online shopping analyst of Black Friday Ads and FatWallet, said in a statement.

It also wasn't immediately clear whether other retailers such as discounters Wal-Mart and Target would be getting additional supplies of these items this month.

"Target is actively working to meet guest demand, and will continue to replenish inventory throughout the season," a spokesman for Target told CNBC.



Officials from Wal-Mart a weren't immediately available to comment.

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