Retailers like Amazon, Target, Gamestop and Best Buy are running out of the Switch video game console.
Nintendo says more systems are on the way.
It’s unclear if the lack of supply is because of the virus pandemic.
In February, the company did say there could be shipment delays.
Since millions of people started staying home, the video game industry has seen a boost.
Last week, Verizon reported US video game usage during peak hours was up by 75 percent.