But you can still continuously play games thanks to an innovative framework for storing system state data to memory that allows you to pick up exactly where you left off, even if you lost power while in the middle of trying to land the perfect jump in Super Mario Land.
When they set out to build their Game Boy, the Engage team wanted to show that it was possible to create an interactive device that doesn't need batteries.
A team of researchers made up of computer scientists from Northwestern University in Illinois and the Delft University of Technology in the Netherlands has developed a Game Boy that uses no batteries at all.
But it's still a significant step forward for the field of intermittent computing. "This could not have been possible even four or five years ago," Josiah Hester, one of the computer scientists who worked on the project, told CNET.
Instead, all you need to play this Game Boy, officially called the Engage, for hours on end is some sunlight and frantic button mashing.
With four simple AA batteries, you could play games like Tetris and Super Mario Land for about 10 to 15 hours.
After presenting their findings at the UbiComp conference on September 15th, the Engage team plans to continue working on their Game Boy.